CN107673567B - Laboratory wastewater intelligent treatment system and treatment process - Google Patents
Laboratory wastewater intelligent treatment system and treatment process Download PDFInfo
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- CN107673567B CN107673567B CN201711156776.2A CN201711156776A CN107673567B CN 107673567 B CN107673567 B CN 107673567B CN 201711156776 A CN201711156776 A CN 201711156776A CN 107673567 B CN107673567 B CN 107673567B
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The invention relates to the field of wastewater treatment, in particular to an intelligent laboratory wastewater treatment system and a treatment process, wherein the intelligent laboratory wastewater treatment system comprises a feeding unit for feeding wastewater, a neutralization unit connected with the feeding unit through a first pipeline for neutralizing the acidity of the wastewater, a precipitation unit connected with the neutralization unit through a second pipeline for precipitating metal ions in the wastewater, a microorganism treatment unit connected with the precipitation unit through a third pipeline for decomposing organic matters in the wastewater, and a control unit electrically connected with the feeding unit, the neutralization unit, the precipitation unit and the microorganism treatment unit for controlling; the first pipeline, the second pipeline and the third pipeline are all S pipes which are roundabout up and down. The laboratory wastewater intelligent treatment system and the process thereof have the advantages of high automation degree, high treatment efficiency, good treatment effect and contribution to energy conservation and environmental protection.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to an intelligent laboratory wastewater treatment system and a laboratory wastewater treatment process.
Background
With the expansion of universities and universities, the number of students is increased and the development of economy is promoted, scientific research is carried out, and the chemical laboratory wastewater is increased increasingly, so that the comprehensive treatment and even recycling of the laboratory wastewater are worldwide difficult problems due to the fact that the laboratory wastewater quality is extremely complex and difficult to predict, the discharge period is irregular, and the wastewater amount is irregular.
The waste water discharged from chemical laboratories is classified into two types, namely dangerous waste liquid with high concentration, which has high hazard, is generally collected separately and then is handed over to units with treatment qualification for treatment; the other type is the comprehensive waste liquid of acid, alkali, heavy metal and organic matters generated by common tests, cleaning experimental equipment, glassware and the like, and the waste liquid has high yield, complex components and easily ignored hazard. At present, many chemical laboratories discharge the second type of wastewater into a sewer without any treatment, and because the components of the experimental wastewater are quite complex, and the wastewater contains more toxic and harmful substances such as acid, alkali, cyanide, hexavalent chromium, arsenide, phenol, benzene and the like, the direct discharge causes pollution to domestic water and living environment of people, and as the requirements of people on the living environment are higher and higher, the awareness of human protection environment is stronger and stronger, the national environmental protection agency sends out notification, and the laboratory, test and the like are managed according to pollution sources from 1 month l of 2005, and the environmental supervision scope is brought in, so that an economical, efficient, energy-saving, environment-friendly and applicable chemical laboratory wastewater treatment process is found.
Disclosure of Invention
In order to solve the problems, the invention provides the laboratory wastewater intelligent treatment system and the laboratory wastewater intelligent treatment process which are high in automation degree, high in treatment efficiency, good in treatment effect and beneficial to energy conservation and environmental protection.
The technical scheme adopted by the invention is as follows: the laboratory wastewater intelligent treatment system comprises a feeding unit for feeding wastewater, a neutralization unit connected with the feeding unit through a first pipeline for neutralizing the acid-base property of the wastewater, a precipitation unit connected with the neutralization unit through a second pipeline for precipitating metal ions in the wastewater, a microorganism treatment unit connected with the precipitation unit through a third pipeline for decomposing organic matters in the wastewater, and a control unit electrically connected with the feeding unit, the neutralization unit, the precipitation unit and the microorganism treatment unit for controlling; the first pipeline, the second pipeline and the third pipeline are all S pipes which are roundabout up and down.
The technical scheme is further improved, wherein the feeding unit comprises a first treatment box body, a first filtering device positioned at the bottom of the first treatment box body, a PH meter positioned in the first treatment box body and a liquid level meter.
The neutralization unit comprises a second treatment box body, an acid adding device and an alkali adding device which are positioned at the top of the second treatment box body, an electromagnetic flow valve connected with the output ends of the acid adding device and the alkali adding device, a stirring device arranged in the second treatment box body, and a second filtering device positioned at the bottom of the second treatment box body; the stirring device comprises a motor arranged on the side edge of the second processing box body, a stirring shaft connected to an output shaft of the motor and extending into the second processing box body, a plurality of blades arranged on the stirring shaft, and heating plates arranged inside the blades.
The sedimentation unit comprises a third treatment box body, a plurality of metal ion sensors, a plurality of dosing devices, an electromagnetic flow valve and a third filtering device, wherein the metal ion sensors are arranged in the third treatment box body and used for detecting the concentration of a plurality of metal ions, the dosing devices are positioned at the top of the third treatment box body, the electromagnetic flow valve is connected to the output end of the dosing device, and the third filtering device is positioned at the bottom of the third treatment box body; the plurality of dosing devices are respectively provided with precipitants corresponding to the plurality of metal ions.
The technical scheme is further improved, the microbial treatment unit comprises a fourth treatment box body, a COD sensor, a BOD sensor and an ammonia nitrogen sensor, wherein the COD sensor is used for detecting COD concentration, the BOD sensor is used for detecting BOD concentration, the ammonia nitrogen sensor is used for detecting ammonia nitrogen concentration, the chemical dosing device is arranged at the top of the fourth treatment box body and used for feeding microbial preparations, the exhaust device is used for exhaust emission, the fourth filtering device is arranged at the bottom of the fourth treatment box body, and the fourth filtering device is connected to the bottom of the fourth treatment box body and the aeration device is arranged inside the fourth treatment box body.
The technical scheme is further improved that the microbial preparation comprises Pediococcus acidilactici, pediococcus pentosaceus, leuconostoc mesenteroides, lactobacillus plantarum, bacillus amyloliquefaciens, bacillus subtilis, lactobacillus acidophilus, pichia farinosa and Brevibacterium.
The control unit comprises a data acquisition device connected with a PH meter, a liquid level meter, a metal ion sensor, a COD sensor, a BOD sensor and an ammonia nitrogen sensor, a central processor connected with the data acquisition device for data processing, a remote control terminal connected with the central processor for remote control, a communication device connected with the central processor and the remote control terminal, and an execution device connected with the central processor for receiving remote control of the remote control terminal, wherein the execution device is electrically connected with an electromagnetic flow valve, a motor, a heating plate, a dosing device, an exhaust device, an electric drain valve and an aeration device for controlling the work of the execution device.
The technical scheme is further improved in that the remote control terminal is a PC or a mobile phone or a PAD.
A laboratory wastewater intelligent treatment process for wastewater treatment using the laboratory wastewater intelligent treatment system of any one of claims 1-8.
The technical scheme is further improved, and the method comprises the following steps that a, the wastewater after experiments enters a feeding unit, b, PH is adjusted in a neutralization unit to adjust the PH value of the wastewater to be neutral, c, metal ions in the wastewater are precipitated through a precipitation unit, and d, microorganisms in the wastewater are degraded through a microorganism treatment unit.
The beneficial effects of the invention are as follows:
1. on the one hand, waste water enters through the feeding unit, flows into the neutralization unit after passing through the first pipeline, the pH value of the waste water in the neutralization unit is adjusted to be neutral, then flows into the precipitation unit after passing through the second pipeline, metal ions are precipitated in the precipitation unit to remove inorganic pollutants in the waste water, then enters the microbial treatment unit after passing through the third pipeline, and in the microbial treatment unit, the microorganisms decompose organic matters in the waste water to remove the organic pollutants in the waste water, the treated waste water reaches the discharge standard, energy conservation and environmental protection are facilitated, various pollutants in the waste water can be completely removed, the treatment efficiency is high, and the treatment effect is good. In the second aspect, the control unit is arranged to control the feeding unit, the neutralization unit, the precipitation unit and the microorganism treatment unit, so that the degree of automation is high, manual interference is not needed, and the treatment efficiency and the treatment effect of the wastewater are further improved. In the third aspect, the first pipeline, the second pipeline and the third pipeline are all S pipes which are roundabout up and down, the treatment units are connected through the S pipes which are roundabout up and down, the air tightness is good, the leakage of wastewater is prevented, new external pollutants are introduced, and the treatment efficiency and the treatment effect of the wastewater are further improved. In the fourth aspect, the invention removes solid matters or flocculent matters in the wastewater through a plurality of filtering devices, adjusts the alkalinity of water body acid and precipitates to remove metal ions in the wastewater through chemical reaction, and finally removes organic pollutants in the wastewater through microbial fermentation.
2. The feeding unit comprises a first treatment box body, a first filtering device positioned at the bottom of the first treatment box body, and a PH meter and a liquid level meter positioned in the first treatment box body, wherein solid impurities in wastewater are preliminarily filtered through the first filtering device, so that subsequent treatment is facilitated, PH and liquid level of the wastewater are detected by the PH meter and the liquid level meter, and a basis is provided for acid and alkali addition of a subsequent neutralization unit.
3. The neutralization unit comprises a second treatment box body, an acid adding device and an alkali adding device which are positioned at the top of the second treatment box body, an electromagnetic flow valve connected to the output ends of the acid adding device and the alkali adding device, a stirring device arranged in the second treatment box body, and a second filtering device positioned at the bottom of the second treatment box body; the second filter equipment carries out the secondary filtration, further get rid of the solid impurity in the waste water, according to the PH of waste water, control electromagnetic flow valve is in order to add the sour or alkali of required amount, in order to adjust the PH of waste water to neutrality, be equipped with agitating unit simultaneously, accelerate the reaction of waste water and sour or alkali, further improved treatment effeciency, agitating unit is including setting up in the motor of second processing box side, connect in the motor output shaft and stretch into the inside (mixing) shaft of second processing box, install a plurality of blade on the (mixing) shaft, still including setting up in the inside heating plate of blade, the heating plate heats the waste water, in order to accelerate neutralization reaction process, thereby further improve treatment effeciency, simultaneously, the heating plate is inside the blade, make the waste water by even heating, neutralization reaction system is more stable.
4. The precipitation unit comprises a third treatment box body, a plurality of metal ion sensors, a plurality of dosing devices, an electromagnetic flow valve and a third filtering device, wherein the metal ion sensors are arranged in the third treatment box body and used for detecting the concentration of a plurality of metal ions; the plurality of dosing devices are respectively provided with precipitants corresponding to the plurality of metal ions. The concentration of metal ions in the wastewater is detected by various metal ion sensors, then corresponding precipitants are added by controlling an electromagnetic flow valve to precipitate the metal ions, so that the various metal ions in the wastewater are ensured to be completely precipitated, and the precipitated wastewater flows into a next treatment unit after being filtered out of a precipitate by a third filtering device, thereby further improving the treatment effect.
5. The microbial treatment unit comprises a fourth treatment box body, a COD sensor, a BOD sensor, an ammonia nitrogen sensor, an administration device and an air exhaust device, wherein the COD sensor is arranged in the fourth treatment box body and used for detecting the COD concentration, the BOD sensor is used for detecting the BOD concentration, the ammonia nitrogen sensor is used for detecting the ammonia nitrogen concentration, the sensors are used for detecting the concentration of various organic pollutants in wastewater, the administration device is arranged at the top of the fourth treatment box body and used for administering microbial preparations and the air exhaust device is used for exhaust emission, the administration device is used for throwing a certain amount of microbial preparations according to the concentration of various organic pollutants so as to decompose organic matters in the wastewater, the exhaust device is used for discharging the exhaust generated in the decomposition process through the air exhaust device, the exhaust device is used for discharging the exhaust after the exhaust treatment, the environmental pollution caused by direct discharge of the exhaust gas is prevented, the fourth filter device is further beneficial to protecting the environment, the fourth filter device is positioned at the bottom of the fourth treatment box body, the fourth filter device is further used for removing solid or flocculent impurities, and the air exhaust device is arranged at the bottom of the fourth treatment box body and is further provided with an electric drain valve and an aeration device which is arranged in the fourth treatment box body and is used for aerating the interior, so that the oxygen required by microbial decomposition reaction is guaranteed, the oxygen is further accelerated, the biological decomposition reaction is further, the concentration is beneficial to the electric decomposition effect is further, and the concentration of the electric water is further the concentration is detected and the concentration is better when the concentration is discharged and the environmental pollution is better is detected and is better and the level and is discharged.
6. The microbial preparation comprises Pediococcus acidilactici, pediococcus pentosaceus, leuconostoc mesenteroides, lactobacillus plantarum, bacillus amyloliquefaciens, bacillus subtilis, lactobacillus acidophilus, pichia farinosa and Saccharomyces brucei. The selected microbial preparation contains 9 kinds of microorganisms, wherein the microbial preparation comprises 7 kinds of probiotics and 2 kinds of yeasts, can oxidize or/and decompose various organic compounds and organic pollutants in the wastewater, inhibit the propagation of malignant putrefying bacteria, and play a role in protecting the environment. Meanwhile, various bacteria in the active microorganism combined biological agent take organic matters in pollutants as food, after the wastewater is purified, the bacteria can be gradually reduced along with the reduction of the pollutants, and when the pollutants are thoroughly removed, the bacteria can die due to lack of food supply, so that the invention can thoroughly remove various pollutants and has good treatment effect. In addition, the microorganism 9 adopted by the invention forms a symbiotic system, does not inhibit the growth of each other, but can generate different products such as metabolites of lactic acid, acetic acid, pediococcus acidizing, nisin, biocidal toxin and the like when 7 probiotics and 2 yeasts coexist, and the metabolic product of one microorganism can be used as enzyme to trigger the metabolic reaction of other microorganisms, so that the whole microorganism combined biological preparation is promoted to generate more metabolic products with decomposition and sterilization effects on pollutants. Further, the active microorganism combined biological agent dies after the pollutants are treated, so that secondary pollution is avoided. The preparation method of the active microorganism combined biological agent directly utilizes organic raw materials such as rice bran, bran meal, bean pulp and the like for fermentation of various bacteria, and the raw materials are natural raw materials, do not contain pathogenic bacteria and disease sources, do not generate secondary pollution, and are further beneficial to environmental protection.
7. The mechanism of action of the microbial preparation is as follows:
pediococcus acidilactici, latin name: pediococcus acidilactici it is a strain of Pediococcus or Pediococcus acidilactici, and has effects of generating acid, regulating gastrointestinal flora, and maintaining intestinal microecological balance. Bacteriocins from Pediococcus acidilactici inhibit the growth of microorganisms such as Lactobacillus (Lactobacillus), leuconostoc (Leuconostoc), staphylococcus aureus, clostridium perfringens (Clostridium perfringens), pseudomonas putida (Pseudomonas putida), and Listeria monocytogenes. Has sensitivity to proteolytic enzyme and thermal stability. Pediococcus pentosaceus, latin name: pediococcus pentosaceus bacteriocins produced by Pediococcus species, pediococcus pentosaceus (Pediococcus pentosaceous) are capable of inhibiting gram-positive pathogenic bacteria such as Bacillus cereus, clostridium perfringens (Clostridium)
perfringens), staphylococcus aureus (Staphylococcus aureus), and listeria monocytogenes.
Leuconostoc mesenteroides, latin name: leuconostoc mesenteroides, an important strain of Leuconostoc among lactic acid bacteria. Leuconostoc mesenteroides can ferment saccharides to generate various acids and alcohols, and has high acid production capacity, oxidation resistance, pathogenic bacteria antagonism and the like.
Lactobacillus plantarum, latin name: lactobacillus plantarum is a kind of lactobacillus, and can produce special lactobacillus in the propagation process, wherein the lactobacillus is a biological preservative; has the functions of purifying water, decomposing organic matters, deodorizing, degrading harmful substances such as ammonia nitrogen, nitrite and the like, maintaining the smoothness of bath phases and bacterial phases, reducing the pH of stable water bodies and the like.
Bacillus amyloliquefaciens, latin name: bacillus amyloliquefaciens the genus Bacillus, is capable of producing a variety of bacteriostatic substances including polypeptides, lipopeptides, and bacteriostatic proteins. Wherein, the antibacterial protein can act on the cell wall of pathogenic fungi to increase the membrane permeability of the pathogenic fungi, thereby inhibiting the growth of the pathogenic fungi.
Bacillus subtilis, latin name: bacillus subtilis active substances such as subtilisin, polymyxin, nystatin, gramicidin and the like generated in the growth process of bacillus subtilis thalli have obvious inhibition effect on pathogenic bacteria or endogenous infected conditional pathogenic bacteria. Can be applied to municipal and industrial sewage treatment, industrial circulating water treatment, septic tank and the like, livestock breeding animal waste, odor treatment, fecal treatment system, garbage, manure pit, septic tank and the like.
Lactobacillus acidophilus, latin name: lactobacillus acidophilus, antagonizing pathogenic microorganisms. Lactobacillus acidophilus can secrete antibiotics (acidophilus, acidophilin, and lactobacillin) to antagonize enteropathogenic bacteria.
Pichia farinosa, latin name: pichia farinose, brussels yeast, latin name: dekkera bruxellensis. On the one hand, these yeasts can effectively decompose various carbohydrates, sugar, starch and various protein amino acids, and provide nutrients required for proliferation of other effective microorganisms. In a second aspect, the yeast can secrete a variety of enzymes, such as cellulases, hemicellulases, xylanases, amylases, pectinases, ligninases, and the like, which can more effectively degrade organic matter of the contaminants. In the third aspect, under the condition of carbon source supply, the powdery pichia pastoris can carry out nitration reaction to decompose ammonia nitrogen into nitrate, thereby achieving the purposes of degrading ammonia nitrogen and deodorizing.
8. The control unit comprises a data acquisition device connected with the PH meter, the liquid level meter, the metal ion sensor, the COD sensor, the BOD sensor and the ammonia nitrogen sensor, a central processing unit connected with the data acquisition device for data processing, a remote control terminal connected with the central processing unit for remote control, a communication device connected with the central processing unit and the remote control terminal, and an execution device connected with the central processing unit for receiving remote control of the remote control terminal, wherein the execution device is electrically connected with an electromagnetic flow valve, a motor, a heating plate, an administration device, an air exhaust device, an electric drain valve and an aeration device for controlling the work of the execution device. According to the invention, the data acquisition device is used for acquiring index data of various pollutants in the sewage, the index data is processed by the central processing unit and fed back to the remote control terminal through the communication device, so that an administrator can monitor the sewage condition of a laboratory in real time, the intelligent degree is high, the working efficiency is high, the data processing capability is high, the acquisition precision is high, the timeliness is high, the operation cost is low, and the large-scale popularization and use are convenient. The signal transmission between the central processing unit and the remote control terminal is bidirectional, so that the signal collected by the data collection device can be rapidly and accurately transmitted to the remote control terminal, the remote control terminal can be accepted, remote control is realized, the data is processed by the central processing unit and then output, the signal is distorted in the transmission process, the accuracy of data collection is improved, the execution device is convenient to take the operation of matters, various medicines with required amounts are added, waste is prevented, the pollutant can be thoroughly removed, the waste water treatment effect and the treatment efficiency are further improved, and the environmental protection is facilitated.
9. The remote control terminal is a PC, a mobile phone or a PAD, so that the user selection is diversified, and the application range of the invention is enlarged.
10. The laboratory wastewater intelligent treatment system provided by the invention is used for wastewater treatment, various pollutant indexes in wastewater can be rapidly and accurately obtained, corresponding amounts of neutralizer or precipitant or microbial agent are added according to the indexes, the pollutant indexes are ensured to reach the emission standard after being treated, the automation degree is high, the treatment efficiency is high, the treatment effect is good, and the environment protection is facilitated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the feeding unit of the present invention;
FIG. 3 is a schematic diagram of the structure of the neutralization unit of the present invention;
FIG. 4 is a schematic diagram of the structure of the precipitation unit of the present invention;
FIG. 5 is a schematic structural view of a microbial treatment unit according to the present invention;
fig. 6 is a control schematic of the present invention.
Detailed Description
The invention will be further illustrated with reference to examples.
Fig. 1 shows a schematic structure of the present invention.
The laboratory wastewater intelligent treatment system 100 comprises a feeding unit 110 for feeding wastewater, an acid-base neutralization unit 130 connected to the feeding unit 110 through a first pipeline 120 for neutralizing the wastewater, a precipitation unit 150 connected to the neutralization unit 130 through a second pipeline 140 for precipitating metal ions in the wastewater, a microorganism treatment unit 170 connected to the precipitation unit 150 through a third pipeline 160 for decomposing organic matters in the wastewater, and a control unit 180 electrically connected to the feeding unit 110, the neutralization unit 130, the precipitation unit 150 and the microorganism treatment unit 170 for controlling; the first pipe 120, the second pipe 140 and the third pipe 160 are all S-pipes which detour up and down.
Fig. 2 is a schematic structural view of the feeding unit according to the present invention.
The feeding unit 110 comprises a first processing box 111, a first filtering device 112 positioned at the bottom of the first processing box 111, a PH meter 113 and a liquid level meter 114 positioned in the first processing box 111, and is used for primarily filtering solid impurities in wastewater through the first filtering device 112, so that subsequent processing is facilitated, the PH meter 113 and the liquid level meter 114 detect the PH and the liquid level of the wastewater, and a basis is provided for adding acid and alkali of the subsequent neutralization unit 130.
As shown in fig. 3, a schematic structural diagram of the neutralization unit of the present invention is shown.
The neutralization unit 130 comprises a second treatment box 131, an acid adding device 132 and an alkali adding device 133 which are positioned at the top of the second treatment box 131, an electromagnetic flow valve 134 which is connected with the output ends of the acid adding device 132 and the alkali adding device 133, a stirring device 135 which is arranged in the second treatment box 131, and a second filtering device 136 which is positioned at the bottom of the second treatment box 131; the second filtering device 136 performs the second filtering to further remove the solid impurities in the wastewater, according to the PH of the wastewater, the electromagnetic flow valve 134 is controlled to add a required amount of acid or alkali to adjust the PH of the wastewater to be neutral, and meanwhile, the stirring device 135 is provided to accelerate the reaction of the wastewater and the acid or alkali, further improving the treatment efficiency, the stirring device 135 comprises a motor 135a arranged at the side of the second treatment tank 131, a stirring shaft 135b connected to the output shaft of the motor 135a and extending into the second treatment tank 131, a plurality of blades 135c arranged on the stirring shaft 135b, and a heating plate 135d arranged in the blade 135c to heat the wastewater so as to accelerate the neutralization reaction process, further improving the treatment efficiency, and meanwhile, the heating plate 135d is arranged in the blade 135c to uniformly heat the wastewater, so that the neutralization reaction system is more stable.
FIG. 4 is a schematic diagram showing the structure of the precipitation unit according to the present invention.
The precipitation unit 150 comprises a third processing box 151, a plurality of metal ion sensors 152 arranged in the third processing box 151 and used for detecting the concentration of a plurality of metal ions, a plurality of dosing devices 153 arranged at the top of the third processing box 151, an electromagnetic flow valve 134 connected to the output end of the dosing devices 153, and a third filtering device 154 arranged at the bottom of the third processing box 151; the plurality of dosing devices 153 are respectively provided with precipitants corresponding to the plurality of metal ions. The concentration of metal ions in the wastewater is detected by various metal ion sensors 152, and then corresponding precipitants are added by controlling the electromagnetic flow valve 134 to precipitate the metal ions, so that the various metal ions in the wastewater are ensured to be completely precipitated, and the precipitated wastewater flows into the next treatment unit after being filtered out of the precipitate by the third filtering device 154, thereby further improving the treatment effect.
FIG. 5 is a schematic diagram showing the structure of a microorganism treatment unit according to the present invention.
The microbiological treatment unit 170 comprises a fourth treatment box 171, a COD sensor 172 which is arranged in the fourth treatment box 171 and used for detecting COD concentration, a BOD sensor 173 which is used for detecting BOD concentration, an ammonia nitrogen sensor 174 which is used for detecting ammonia nitrogen concentration, various sensors for detecting the concentration of various organic pollutants in wastewater, an administration device 175 which is arranged at the top of the fourth treatment box 171 and used for throwing microbiological preparations, and an exhaust device 176 which is used for exhaust gas emission, wherein the administration device 175 is used for throwing quantitative microbiological preparations according to the concentration of various organic pollutants so as to decompose organic matters in the wastewater, the exhaust device 176 discharges the waste gas generated in the decomposition process after the waste gas treatment, environmental pollution caused by direct discharge of the waste gas is prevented, the fourth filter device 177 which is positioned at the bottom of the fourth treatment box 171 is further beneficial to protecting the environment, the fourth filter device 177 further removes solid or flocculent impurities, and an electric drain valve 178 which is connected at the bottom of the fourth treatment box 171 and an aerator 179 which is arranged in the fourth treatment box 171 are further included, the electric drain valve 178 is further arranged at the bottom of the fourth treatment box 171, the aeration device 179 is further beneficial to accelerating the aeration device is arranged at the bottom of the fourth treatment box 171, the electric drain valve 178 is further beneficial to the detection of the concentration of various organic pollutants, the biological treatment reactions are further carried out, the environmental pollution is guaranteed, and the environmental pollution is further detected and the environmental pollution is further guaranteed, and the environmental pollution is further polluted is further is guaranteed when the aeration concentration is detected and the aeration device is further processed, and the aeration device is further the environmental protection is further the environmental-friendly is further processed.
The microbial preparation comprises Pediococcus acidilactici, pediococcus pentosaceus, leuconostoc mesenteroides, lactobacillus plantarum, bacillus amyloliquefaciens, bacillus subtilis, lactobacillus acidophilus, pichia farinosa and Saccharomyces brucei. The selected microbial preparation contains 9 kinds of microorganisms, wherein the microbial preparation comprises 7 kinds of probiotics and 2 kinds of yeasts, can oxidize or/and decompose various organic compounds and organic pollutants in the wastewater, inhibit the propagation of malignant putrefying bacteria, and play a role in protecting the environment. Meanwhile, various bacteria in the active microorganism combined biological agent take organic matters in pollutants as food, after the wastewater is purified, the bacteria can be gradually reduced along with the reduction of the pollutants, and when the pollutants are thoroughly removed, the bacteria can die due to lack of food supply, so that the invention can thoroughly remove various pollutants and has good treatment effect. In addition, the microorganism 9 adopted by the invention forms a symbiotic system, does not inhibit the growth of each other, but can generate different products such as metabolites of lactic acid, acetic acid, pediococcus acidizing, nisin, biocidal toxin and the like when 7 probiotics and 2 yeasts coexist, and the metabolic product of one microorganism can be used as enzyme to trigger the metabolic reaction of other microorganisms, so that the whole microorganism combined biological preparation is promoted to generate more metabolic products with decomposition and sterilization effects on pollutants. Further, the active microorganism combined biological agent dies after the pollutants are treated, so that secondary pollution is avoided. The preparation method of the active microorganism combined biological agent directly utilizes organic raw materials such as rice bran, bran meal, bean pulp and the like for fermentation of various bacteria, and the raw materials are natural raw materials, do not contain pathogenic bacteria and disease sources, do not generate secondary pollution, and are further beneficial to environmental protection.
The mechanism of action of the microbial preparation is as follows:
pediococcus acidilactici, latin name: pediococcus acidilactici it is a strain of Pediococcus or Pediococcus acidilactici, and has effects of generating acid, regulating gastrointestinal flora, and maintaining intestinal microecological balance. Bacteriocins from Pediococcus acidilactici inhibit the growth of microorganisms such as Lactobacillus (Lactobacillus), leuconostoc (Leuconostoc), staphylococcus aureus, clostridium perfringens (Clostridium perfringens), pseudomonas putida (Pseudomonas putida), and Listeria monocytogenes. Has sensitivity to proteolytic enzyme and thermal stability.
Pediococcus pentosaceus, latin name: pediococcus pentosaceus it is a species of Pediococcus, pediococcus pentosaceus, and bacteriocins produced by Pediococcus pentosaceus (Pediococcus pentosaceous) inhibit gram-positive pathogens such as Bacillus cereus (Bacillus cereus), clostridium perfringens (Clostridium perfringenes), staphylococcus aureus (Staphylococcus aureus) and Listeria monocytogenes.
Leuconostoc mesenteroides, latin name: leuconostoc mesenteroides, an important strain of Leuconostoc among lactic acid bacteria. Leuconostoc mesenteroides can ferment saccharides to generate various acids and alcohols, and has high acid production capacity, oxidation resistance, pathogenic bacteria antagonism and the like.
Lactobacillus plantarum, latin name: lactobacillus plantarum is a kind of lactobacillus, and can produce special lactobacillus in the propagation process, wherein the lactobacillus is a biological preservative; has the functions of purifying water, decomposing organic matters, deodorizing, degrading harmful substances such as ammonia nitrogen, nitrite and the like, maintaining the smoothness of bath phases and bacterial phases, reducing the pH of stable water bodies and the like.
Bacillus amyloliquefaciens, latin name: bacillus amyloliquefaciens the genus Bacillus, is capable of producing a variety of bacteriostatic substances including polypeptides, lipopeptides, and bacteriostatic proteins. Wherein, the antibacterial protein can act on the cell wall of pathogenic fungi to increase the membrane permeability of the pathogenic fungi, thereby inhibiting the growth of the pathogenic fungi.
Bacillus subtilis, latin name: bacillus subtilis active substances such as subtilisin, polymyxin, nystatin, gramicidin and the like generated in the growth process of bacillus subtilis thalli have obvious inhibition effect on pathogenic bacteria or endogenous infected conditional pathogenic bacteria. Can be applied to municipal and industrial sewage treatment, industrial circulating water treatment, septic tank and the like, livestock breeding animal waste, odor treatment, fecal treatment system 100, garbage, manure pit, septic tank and the like.
Lactobacillus acidophilus, latin name: lactobacillus acidophilus, antagonizing pathogenic microorganisms. Lactobacillus acidophilus can secrete antibiotics (acidophilus, acidophilin, and lactobacillin) to antagonize enteropathogenic bacteria.
Pichia farinosa, latin name: pichia farinose, brussels yeast, latin name: dekkera bruxellensis. On the one hand, these yeasts can effectively decompose various carbohydrates, sugar, starch and various protein amino acids, and provide nutrients required for proliferation of other effective microorganisms. In a second aspect, the yeast can secrete a variety of enzymes, such as cellulases, hemicellulases, xylanases, amylases, pectinases, ligninases, and the like, which can more effectively degrade organic matter of the contaminants. In the third aspect, under the condition of carbon source supply, the powdery pichia pastoris can carry out nitration reaction to decompose ammonia nitrogen into nitrate, thereby achieving the purposes of degrading ammonia nitrogen and deodorizing.
As shown in fig. 6, a control schematic of the present invention is shown.
The control unit 180 includes a data acquisition device 181 connected to the PH meter 113, the liquid level meter 114, the metal ion sensor 152, the COD sensor 172, the BOD sensor 173, the ammonia nitrogen sensor 174, a central processor 182 connected to the data acquisition device 181 for data processing, a remote control terminal 183 connected to the central processor 182 for remote control, a communication device 184 connected to the central processor 182 and the remote control terminal 183, and an execution device 185 connected to the central processor 182 for receiving remote control of the remote control terminal 183, wherein the execution device 185 is electrically connected to the electromagnetic flow valve 134, the motor 135a, the heating sheet 135d, the administration device 175, the air exhaust device 176, the electric drain valve 178 and the aeration device 179 for controlling the operation thereof. In the invention, various pollutant index data in sewage are acquired through the data acquisition device 181, are processed by the central processor 182 and are fed back to the remote control terminal 183 through the communication device 184, so that an administrator can monitor the sewage condition of a laboratory in real time, the intelligent degree is high, the working efficiency is high, the data processing capability is high, the acquisition precision is high, the timeliness is high, the operation cost is low, and the large-scale popularization and the use are convenient. The signal transmission between the central processing unit 182 and the remote control terminal 183 is bidirectional, so that the signal acquired by the data acquisition device 181 can be rapidly and accurately transmitted to the remote control terminal 183, the remote control terminal 183 can be accepted, remote control is realized, and the data is processed by the central processing unit 182 and then output, so that the distortion of the signal is reduced in the transmission process, the accuracy of data acquisition is improved, the execution device 185 is convenient to take the operation of matters, various medicines with required amounts are added, waste is prevented, the pollutant can be thoroughly removed, the waste water treatment effect and the treatment efficiency are further improved, and the environmental protection is facilitated.
The remote control terminal 183 is a PC, a mobile phone or a PAD, and the user selects various, thereby expanding the application scope of the present invention.
By adopting the laboratory wastewater intelligent treatment system 100 disclosed by the invention for wastewater treatment, various pollutant indexes in wastewater can be rapidly and accurately obtained, corresponding amounts of neutralizer or precipitant or microbial preparation are added according to the indexes, the pollutant indexes are ensured to reach the emission standard after being treated, the automation degree is high, the treatment efficiency is high, the treatment effect is good, and the environmental protection is facilitated.
A laboratory wastewater intelligent treatment process for wastewater treatment using the laboratory wastewater intelligent treatment system 100 of any one of claims 1-8. The method comprises the following steps of a, feeding the wastewater after the experiment into a feeding unit 110, b, regulating the PH value in a neutralization unit 130, regulating the PH value of the wastewater to be neutral, c, precipitating metal ions in the wastewater by a precipitation unit 150, and d, degrading microorganisms in the wastewater by a microorganism treatment unit 170.
On the one hand, the wastewater enters through the feeding unit 110, flows into the neutralization unit 130 after passing through the first pipeline 120, the pH value of the wastewater in the neutralization unit 130 is adjusted to be neutral, then flows into the precipitation unit 150 after passing through the second pipeline 140, metal ions are precipitated in the precipitation unit 150 to remove inorganic pollutants in the wastewater, then enters the microorganism treatment unit 170 after passing through the third pipeline 160, and organic matters in the wastewater are decomposed by microorganisms in the microorganism treatment unit 170 to remove the organic pollutants in the wastewater. In the second aspect, the control unit 180 is provided to control the feeding unit 110, the neutralization unit 130, the precipitation unit 150 and the microorganism treatment unit 170, so that the degree of automation is high, no manual intervention is required, and the treatment efficiency and the treatment effect of the wastewater are further improved. In the third aspect, the first pipeline 120, the second pipeline 140 and the third pipeline 160 are all S pipes which are roundabout up and down, and the treatment units are connected through the S pipes which are roundabout up and down, so that the air tightness is good, the leakage of the wastewater and the introduction of new external pollutants are prevented, and the treatment efficiency and the treatment effect of the wastewater are further improved. In the fourth aspect, the invention removes solid matters or flocculent matters in the wastewater through a plurality of filtering devices, adjusts the alkalinity of water body acid and precipitates to remove metal ions in the wastewater through chemical reaction, and finally removes organic pollutants in the wastewater through microbial fermentation.
The working principle of the invention is as follows:
firstly, the wastewater enters the feeding unit 110, the ph meter 113 and the liquid level meter 114 respectively measure the ph value and the liquid level of the wastewater in the first treatment tank 111, and the information is fed back to the data acquisition device 181 of the control unit 180, and the wastewater in the first treatment tank 111 flows out of the first treatment tank 111 after being primarily filtered by the first filtering device 112 and enters the second treatment tank 131 through the first pipeline 120.
The data acquisition device 181 feeds back the pH value and the liquid level to the central processing unit 182, the central processing unit 182 calculates to obtain the acid or alkali to be added, and starts the electromagnetic flow valve 134 through the execution module to input the acid or alkali to reach neutrality in the wastewater in the second treatment box 131, and in the process of adding the acid or alkali, the execution module starts the motor 135a, the motor 135a drives the blade 135c to rotate to stir, meanwhile, the heating plate 135d works to heat the wastewater, so that the neutralization reaction is accelerated, the neutralized wastewater flows out of the second treatment box 131 to enter after being filtered for the second time through the second filtering device 136, and enters the third treatment box 151 through the second pipeline 140.
The concentrations of various metal ions in the wastewater are detected by various metal ion sensors 152, the data are received by a data acquisition device 181 and fed back to a central processor 182, the central processor 182 calculates the types and the input amounts of the precipitants to be input, the electromagnetic flow valves 134 corresponding to the dosing devices 153 are controlled to be opened so as to input the corresponding precipitants into a third processing box 151, after the metal ions are precipitated, the precipitates are filtered out by a third filtering device 154, and then enter a fourth processing box 171 through a third pipeline 160.
In the fourth treatment tank 171, the COD sensor 172, the BOD sensor 173, the ammonia nitrogen sensor 174 detect the concentration of various organic pollutants in the wastewater, the data acquisition device 181 acquires the data and transmits the data to the central processing unit 182, the central processing unit 182 calculates the amount of the microbial preparation to be put into, and the execution device 185 starts the electromagnetic flow valve 134 to put into the microbial preparation, various bacteria or yeasts in the microorganisms take the organic matters in the wastewater as raw materials to perform decomposition reaction, the pollutants in the wastewater are decomposed, the waste gas generated in the decomposition process is discharged through the exhaust device 176, the COD sensor 172, the BOD sensor 173, the ammonia nitrogen sensor 174 monitor the corresponding pollutant concentration in real time, when the discharge standard is reached, the execution device 185 starts the electric drain valve 178, the treated water is discharged through the fourth filter device 177, and in the microbial decomposition process, the aeration device 179 works, clean air is introduced into the system to ensure the smooth proceeding of the microbial fermentation.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. Laboratory waste water intelligent processing system, its characterized in that: the device comprises a feeding unit for feeding wastewater, a neutralization unit connected to the feeding unit through a first pipeline for neutralizing the acid-base property of the wastewater, a precipitation unit connected to the neutralization unit through a second pipeline for precipitating metal ions in the wastewater, a microorganism treatment unit connected to the precipitation unit through a third pipeline for decomposing organic matters in the wastewater, and a control unit electrically connected to the feeding unit, the neutralization unit, the precipitation unit and the microorganism treatment unit for controlling; the first pipeline, the second pipeline and the third pipeline are S pipes which are roundabout up and down;
the sedimentation unit comprises a third treatment box body, a plurality of metal ion sensors, a plurality of dosing devices, an electromagnetic flow valve and a third filtering device, wherein the metal ion sensors are arranged in the third treatment box body and used for detecting the concentration of a plurality of metal ions; the plurality of dosing devices are respectively provided with precipitants corresponding to a plurality of metal ions;
the microorganism treatment unit comprises a fourth treatment box body, a COD sensor, a BOD sensor, an ammonia nitrogen sensor, an administration device and an exhaust device, wherein the COD sensor is arranged inside the fourth treatment box body and used for detecting the COD concentration, the BOD sensor is used for detecting the BOD concentration, the ammonia nitrogen sensor is used for detecting the ammonia nitrogen concentration, the administration device is arranged at the top of the fourth treatment box body and used for throwing microorganism preparations, the exhaust device is used for exhaust emission, the fourth filtering device is arranged at the bottom of the fourth treatment box body, and the electric drainage valve is connected to the bottom of the fourth treatment box body and the aeration device is arranged inside the fourth treatment box body.
2. The laboratory wastewater intelligent treatment system according to claim 1, wherein: the feeding unit comprises a first treatment box body, a first filtering device positioned at the bottom of the first treatment box body, and a PH meter and a liquid level meter positioned in the first treatment box body.
3. The laboratory wastewater intelligent treatment system according to claim 1, wherein: the neutralization unit comprises a second treatment box body, an acid adding device and an alkali adding device which are positioned at the top of the second treatment box body, an electromagnetic flow valve connected to the output ends of the acid adding device and the alkali adding device, a stirring device arranged in the second treatment box body, and a second filtering device positioned at the bottom of the second treatment box body; the stirring device comprises a motor arranged on the side edge of the second processing box body, a stirring shaft connected to an output shaft of the motor and extending into the second processing box body, a plurality of blades arranged on the stirring shaft, and heating plates arranged inside the blades.
4. The laboratory wastewater intelligent treatment system according to claim 1, wherein: the microbial preparation comprises Pediococcus acidilactici, pediococcus pentosaceus, leuconostoc mesenteroides, lactobacillus plantarum, bacillus amyloliquefaciens, bacillus subtilis, lactobacillus acidophilus, pichia farinosa and Saccharomyces brucei.
5. The laboratory wastewater intelligent treatment system according to claim 1, wherein: the control unit comprises a data acquisition device connected with the PH meter, the liquid level meter, the metal ion sensor, the COD sensor, the BOD sensor and the ammonia nitrogen sensor, a central processing unit connected with the data acquisition device for data processing, a remote control terminal connected with the central processing unit for remote control, a communication device connected with the central processing unit and the remote control terminal, and an execution device connected with the central processing unit for receiving remote control of the remote control terminal, wherein the execution device is electrically connected with an electromagnetic flow valve, a motor, a heating plate, an administration device, an exhaust device, an electric drain valve and an aeration device for controlling the operation of the execution device.
6. The laboratory wastewater intelligent treatment system according to claim 5, wherein: the remote control terminal is a PC or a mobile phone or a PAD.
7. The intelligent laboratory wastewater treatment process is characterized in that: wastewater treatment using the laboratory wastewater intelligent treatment system of any one of claims 1-6.
8. The laboratory wastewater intelligent treatment process according to claim 7, wherein: the method comprises the following steps that a, wastewater after experiments enters a feeding unit, b, PH is adjusted in a neutralization unit, PH value of the wastewater is adjusted to be neutral, c, metal ions in the wastewater are precipitated through a precipitation unit, and d, microorganisms in the wastewater are degraded through a microorganism treatment unit.
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