CN101602527B - High-efficiency plant wastewater treating agent and method for treating wastewater by same - Google Patents
High-efficiency plant wastewater treating agent and method for treating wastewater by same Download PDFInfo
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- CN101602527B CN101602527B CN2009100947246A CN200910094724A CN101602527B CN 101602527 B CN101602527 B CN 101602527B CN 2009100947246 A CN2009100947246 A CN 2009100947246A CN 200910094724 A CN200910094724 A CN 200910094724A CN 101602527 B CN101602527 B CN 101602527B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
The invention provides a high-efficiency plant wastewater treating agent and a method for treating wastewater by the same. Plant is used as a raw material and subjected to pyrogenation and carbonization, fractionation and separation, condensation and separation and filtering, purification and separation to obtain the high-efficiency plant wastewater treating agent; the treating agent is fed to a wastewater inlet of conventional wastewater treatment, and can substantially degrade organisms of the wastewater to reduce COD by 6 to 30 percent and solid suspended matter by 8 to 38 percent before the wastewater enters an aeration tank, improve the water inlet quality of a wastewater treatment plant, reduce the treatment load of subsequent wastewater, reduce the treatment time of the wastewater in unit volume by 10 to 25 percent, improve the treatment efficiency of the wastewater and reduce the operating cost of the wastewater treatment by 15 percent; and the high-efficiency plant wastewater treating agent has wide source, no toxicity, no pollution, cheapness and large selectivity, can promote the metabolic activity of microorganism, has remarkable effects of reducing the cost of the wastewater treatment plant and improving the treatment quality of the wastewater, can remove stink generated in the wastewater treating process and avoids causing influence on ambient environment.
Description
Technical field
The present invention relates to a kind of plant sewage-treating agent, relate to sewage water treatment method simultaneously, belong to the technology of waste water control field.
Background technology
Environment protection directly affects the Sustainable development of Chinese national economy.In China's Economic development in the past few decades,, caused the very serious situation of present stage environmental pollution owing to ignored developing environment protection.Though taked a large amount of measure of control in recent years, environment further becomes bad trend and is still continuing.China is one of the most serious country of environmental pollution in the world, and it is the city that nothing is recognized, and still rural, the atmosphere of China, river, lake, ocean and soil etc. all are subjected to pollution in various degree.Five cities such as Kweiyang, Chongqing, Beijing, Lanzhou are positioned at the row in the most serious city of the world's ten big atmospheric pollutions, and in more than 600 city, the whole nation, air quality meets the less than 1% of country-level standard.The degree and the zone of nationwide acid rain harm enlarge day by day.
In the annual sewage discharge in the whole nation, only 10% sanitary sewage and 70% industrial sewage obtain handling, wherein there is the water outlet of half industrial sewage treatment facility not reach discharging standards approximately, all the other untreated sewages then directly enter in the rivers and lakes, cause the water surrounding of China to suffer severe contamination and destruction; The quantity discharged of town domestic sewage is just along with city-building and development and be the trend that increases progressively.Whole nation industry in 2002 and urban life wastewater emission amount are 439.5 hundred million tons, increase by 1.5% than the last year, and wherein discharged volume of industrial waste water is 207.2 hundred million tons, increases by 2.3% than the last year; 232.3 hundred million tons of town domestic sewage quantity dischargeds increase by 0.9% than the last year, and only have 10% to obtain handling in the town domestic sewage.According to statistics, in 110 emphasis sections in the whole nation seven big water systems and landlocked river, what belong to 4 classes and 5 class water bodys accounts for 39%; Urban ground water pollutes general serious, and is the trend of further deterioration, in the river in 136 cities of flowing through, belong to 4 classes, 5 classes and surpass 5 class standards up to 76.8%; About 50% urban groundwater is subjected to pollution in various degree; Bigger freshwater lake such as the eutrophication degree such as Dian Chi, Taihu Lake and Chaohu in the whole nation are aggravated year by year; Some geographic drinking water sources are subjected to severe contamination, and people ' s health is caused serious harm.Municipal wastes and industrial solid castoff grow with each passing day, and trade waste accumulative total accumulating amount surpasses 6,600,000,000 tons, takes up an area of and surpasses 50,000 hectares, and more than 200 city is absorbed among the rubbish encirclement.Serious ecological damage has increased the weight of Yangtze River flood disaster in 1998, has caused heavy losses to the people's lives and property and national economy.Data estimator according to 2002, China's city domestic sewage total emission volumn (comprising urban industry waste water) is greater than 50,000,000,000 tons/year, since 1999, city domestic sewage COD quantity discharged surpassed the COD quantity discharged of trade effluent, illustrates that the Urban Water Environment quality is in further decline.
With regard to sewage disposal investment cost and working cost, it is predicted, be 1,050 hundred million m to China's urban sewage discharge total amount in 2010
3, treatment rate of domestic sewage will reach 50%, estimate to need seat surplus the newly-built sewage work 1000.Calculate by ton water cost 1500-2000 unit and working cost 0.8-1.4 unit/ton, the municipal sewage plant that China does not invest to build as yet needs 1,000 hundred million yuan of one-time investments, adds the city planting ductwork construction, and investment surpasses 2,000 hundred million yuan, 25,000,000,000 yuan again of annual running costs.And the fund that China municipal sewage plant builds, 90% comes from various loans, and annual 20000000000 yuan are used for the Sewage Plant construction, and each project is on average repaid 10 years phases, and principal and interest will be above 30,000,000,000 yuan after several years, and running cost and principal and interest account for 1% of China GDP.And present municipal sewage treatment has only social benefit, there is no economic benefit, and therefore, huge like this investment and working cost to the China of economics of underdevelopment, are undoubtedly a white elephant.
And the principal element of investment of decision municipal sewage plant and running cost is sewage treatment process and Technology Selection, that China's urban sewage treatment process generally adopts at present is traditional activated sludge process, oxidation ditch, SBR etc., these maturations and effective treatment craft is widely used in various places.But for a long period, the high construction that hampers China municipal sewage plant of, working cost big because of energy consumption, some sewage works that build up are in stopping production and half end-of-life state for a long time also because of the high reason of energy consumption simultaneously.In one quite long from now on period, energy consumption problem will become the bottleneck of municipal sewage treatment.Can solve the energy consumption problem of Sewage Plant, rationally carrying out the energy distributes, become the key factor of decision sewage work on-road efficiency quality, it also is the deciding factor of new sewage work's feasibility analysis in future, exploitation is fit to efficient, the low consumption of China's national situation and can satisfies emission request, and sewage disposal new technology and novel process that capital construction and working cost are low will be the only ways of following sewage work design and running, are of great practical significance.
Summary of the invention
The object of the present invention is to provide a kind of high-efficiency plant sewage-treating agent, to reduce COD and the suspended solid in the sewage.
Another object of the present invention is to provide a kind of method of utilizing the plant treating sewage by sewage treating agent,, to reduce COD and the suspended solid in the sewage, alleviate postorder sewage disposal load, improve wastewater treatment efficiency, reduce sewage disposal running cost.
First purpose of the present invention realizes by following technical proposal: a kind of high-efficiency plant sewage-treating agent is characterized in that it is raw material with the plant, and obtains through following process steps:
A, with plant material under 450-1050 ℃ of temperature condition, carry out pyrogenation and carbonization, pyrogenation and carbonization gas;
B, with the pyrogenation and carbonization gas of A step, under 350～500 ℃ of temperature condition, carry out fractionation separates, isolate wood tar oil and wood gas, reclaim wood tar oil;
C, the isolated wood gas of B step is carried out condensation separation get plant extract stoste under normal temperature condition;
D, with the plant extract stoste of C step, undertaken that filtration, purification separates or standing separation more than 60 days by active carbon layer, the refined plant sewage-treating agent.
Described plant is one or more in stalk, tobacco rod, branch, leaf, the Hemp Eupatorium; Can also be other all biomass resources.
The pyrogenation and carbonization of described A step is to finish on the conventional distillation apparatus of prior art.
The fractionation separates of described B step is to finish in the conventional multistage fractionation decontaminating separator of prior art.
The condensation separation of described C step is to finish in the conventional condensation separator of prior art.
Second purpose of the present invention realizes by following technical proposal: a kind of method of utilizing the plant treating sewage by sewage treating agent, comprise conventional sewage treatment process step, it is characterized in that sewage admission port place, press following input refined plant sewage-treating agent at conventional sewage treatment process:
For the sewage of COD,, in the refined plant sewage-treating agent input sewage with 100～200 times of dilutions, stir 30～40min by the amount that sewage per ton is thrown 0.25～2.5Kg greater than 8.5mg/L;
Perhaps
For the sewage of COD,, in the refined plant sewage-treating agent input sewage with 300～500 times of dilutions, stir 30～40min by the amount that sewage per ton is thrown 0.25～2.5Kg less than 8.5mg/L.
Described stirring coexists by sewage and plant sewage-treating agent one and flows in the closed conduit and finish, perhaps finish by the whipping device of existing sewage work, with effect by plant sewage-treating agent self, organism in the degradation of sewage, improve the sewage quality, thereby reduce postorder sewage disposal load, reduce the unit volume sewage disposal time.
The present invention compared with prior art has following advantage and effect: adopt above-mentioned plant sewage-treating agent provided by the invention, and it is dropped into the water inlet of sewage disposal, can be in ducted flow process, organism in a large amount of degradation of sewage, and organic degradation speed is accelerated, reduce COD in the sewage before making sewage enter sudden and violent gas pond, two the key technical indexes of suspended solid, wherein, COD reduces by 6%～30%, suspended solid reduces by 8%～38%, improve the water inlet quality of sewage work, thereby reduced postorder sewage disposal load, make the aeration time in the sewage treatment process shorten, unit volume sewage disposal time decreased 10%～25%, improve the unit volume sewage treating efficiency, reduce the operation cost 15% of sewage work unit's sewage disposal, because natural plant sewage-treating agent provided by the invention, it is wide to have the source, nontoxic, pollution-free, inexpensive, advantages such as selectivity is big, can guarantee the Metabolic activity of microorganism after the adding, change the pH value of environment, keep optimum regime, to reducing sewage work's cost unusual effect is arranged, simultaneously the foul smell that produces in sewage work's operational process there is the deodorizing effect, avoids the influence that surrounding environment is caused.The plant sewage-treating agent is when handling high-concentration sewage, has higher throwing out, with reducing the inorganic medicament thrown in the high-concentration sewage treating processes such as Tai-Ace S 150, aluminium chlorohydroxide, ferrous sulfate, iron trichloride etc., reduce the high-concentration sewage processing cost largely.
The mechanism that the present invention disposes of sewage is: by the metabolism of microorganism, make and be the organic pollutant that dissolves colloidal state in the waste water and be converted into and stablize harmless material, mainly contain two kinds of methods in the middle of this: a kind of is the anaerobic digestion reduction method, and another kind is the aerobic oxidation method.
The anaerobic digestion reduction method is meant under the condition of free-dioxygen, by the effect of anaerobion, the various complicated organism decomposition and inversion in the waste water is become methane and carbonic acid gas etc., i.e. anaerobic digestion.In the technology of disposing of sewage with the anaerobic digestion reduction method, throw in plant sewage-treating agent of the present invention earlier at the sewage inlet place, can play following two effects: the one,, the plant sewage-treating agent is in the purification course of processing, finished acetous process, therefore, join it in organic waste water after, can make complicated organic suspension thing liquefaction, to reach the effect that reduces the organic sewage suspended solid; The 2nd,, the plant sewage-treating agent also can produce propionic acid in acetous process, lipid acid and alcohols such as butyric acid, after it joins in the sewage, change into acetate and hydrogen with the organism in the sewage, and with the generation of carbonic acid gas, thereby supply raw materials for the formation of methane, in this a series of reaction, the plant sewage-treating agent has played the organism in the sewage has been carried out effective decomposition liquefaction, thereby reduced the quantity that suspended solid in factory's sewage advances in sewage work, improved the water quality that factory sewage advances in sewage work, reduced the cost of sewage disposal of unit volume.
The aerobic oxidation method is meant: in the sewage that has free oxygen to exist, aerobic microbiological can carry out oxygen metabolism with the organic pollutant in the waste water as nutrition source, thereby reduces organic content, makes it innoxious.In with aerobic oxidative treatment process sewage, throw in plant sewage-treating agent of the present invention earlier at the sewage inlet place, improved the water quality of advancing factory's sewage with the sewage work of aerobic oxidation style technology, can guarantee the Metabolic activity of microorganism, change the pH value of environment, make it keep optimum regime, thereby improved wastewater treatment efficiency, reduced the cost of sewage disposal of unit volume.
Embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1
High-efficiency plant sewage-treating agent provided by the invention is a raw material with the Hemp Eupatorium plant, makes through following process steps:
A, with the Hemp Eupatorium plant material under 470 ℃ of temperature condition, carry out pyrogenation and carbonization with conventional pyrogenation and carbonization equipment, pyrogenation and carbonization gas;
B, A step gained pyrogenation and carbonization gas is sent in the conventional multistage fractionation decontaminating separator, under 380 ℃ of temperature condition, separate, isolate wood tar oil and wood gas, reclaim wood tar oil;
C, the isolated wood gas of B step is sent in the conventional condensation separator, condensation gets plant extract stoste under normal temperature condition;
D, with the plant extract stoste of C step, carry out filtration, purification by active carbon layer, the refined plant sewage-treating agent.
Embodiment 2
High-efficiency plant sewage-treating agent provided by the invention is raw material with the straw, makes through following process steps:
A, with straw raw material under 800 ℃ of temperature condition, carry out pyrogenation and carbonization with conventional pyrogenation and carbonization equipment, pyrogenation and carbonization gas;
B, A step gained pyrogenation and carbonization gas is sent in the conventional multistage fractionation decontaminating separator, under 420 ℃ of temperature condition, separate, isolate wood tar oil and wood gas, reclaim wood tar oil;
C, the isolated wood gas of B step is sent in the conventional condensation separator, condensation gets plant extract stoste under normal temperature condition;
D, with the plant extract stoste of C step, leave standstill more than 60 days, get supernatant liquor and promptly get the refined plant sewage-treating agent.
Embodiment 3
High-efficiency plant sewage-treating agent provided by the invention is raw material with the branch, makes through following process steps:
A, with the branch raw material under 1020 ℃ of temperature condition, carry out pyrogenation and carbonization with conventional pyrogenation and carbonization equipment, pyrogenation and carbonization gas;
B, A step gained pyrogenation and carbonization gas is sent in the conventional multistage fractionation decontaminating separator, under 500 ℃ of temperature condition, separate, isolate wood tar oil and wood gas, reclaim wood tar oil;
C, the isolated wood gas of B step is sent in the conventional condensation separator, condensation gets plant extract stoste under normal temperature condition;
D, with the plant extract stoste of C step, carry out filtration, purification by active carbon layer, the refined plant sewage-treating agent.
Embodiment 4
The method of utilizing the plant treating sewage by sewage treating agent provided by the invention, comprise the conventional aerobic oxidative treatment process sewage of usefulness step, wherein, COD in the pending sanitary sewage is 11.60mg/L, suspension solid substance XG is 147.5mg/L, the pH value is 7.55, at the sewage inlet place, throw the amount of 1.5Kg by sewage per ton, the refined plant sewage-treating agent of the embodiment 1 of 100 times of dilutions is dropped in the sewage, allow sewage and the plant sewage-treating agent one mobile 30min in the closed conduit that coexists, COD reduces to 7.44mg/L, suspended solid is reduced to 92.4mg/L, the pH value is 7.06, improved the water inlet quality of sewage work,, alleviated the sewage disposal load so that in the processing step that the conventional aerobic oxidation method of the usefulness of postorder is disposed of sewage, improve wastewater treatment efficiency, finally make sewage reach emission standard.
Embodiment 5
The method of utilizing the plant treating sewage by sewage treating agent provided by the invention, the step that comprises the conventional aerobic oxidative treatment sewage of usefulness, wherein, COD in the pending sanitary sewage is 10.64mg/L, suspension solid substance XG is 247.2mg/L, the pH value is 7.59, at the sewage inlet place, throw the amount of 2.5Kg by sewage per ton, the refined plant sewage-treating agent that dilutes 200 times embodiment 2 is dropped in the sewage, allow sewage and plant sewage-treating agent one 40min that flows in the closed conduit that coexists, COD reduces to 7.28mg/L, suspended solid is reduced to 202.4mg/L, and the pH value is 7.10 to have improved the water inlet quality of sewage work, so that in the processing step that the conventional aerobic oxidation method of the usefulness of postorder is disposed of sewage, alleviate the sewage disposal load, improve wastewater treatment efficiency, finally make sewage reach emission standard.
Embodiment 6
The method of utilizing the plant treating sewage by sewage treating agent provided by the invention, comprise conventional step of disposing of sewage with the anaerobic digestion reduction method, wherein, COD in the pending sanitary sewage is 6.95mg/L, suspension solid substance XG is 127.2mg/L, the pH value is 7.59, at the sewage inlet place, throw the amount of 1.0Kg by sewage per ton, the refined plant sewage-treating agent that dilutes 500 times embodiment 3 is dropped in the sewage, allow sewage and plant sewage-treating agent one coexist and stir 35min in the stirrer, COD reduces to 5.01mg/L, suspended solid is reduced to 92.02mg/L, and the pH value is 7.10 to have improved the water inlet quality of sewage work, so that in the processing step that the conventional anaerobic digestion reduction method of the usefulness of postorder is disposed of sewage, alleviate the sewage disposal load, improve wastewater treatment efficiency, finally make sewage reach emission standard.
Claims (6)
1. a high-efficiency plant sewage-treating agent is characterized in that it is raw material with the plant, and obtains through following process steps:
A, with plant material under 450-1050 ℃ of temperature condition, carry out pyrogenation and carbonization, pyrogenation and carbonization gas, wherein, described plant is one or more in stalk, tobacco rod, branch, leaf, the Hemp Eupatorium;
B, with the pyrogenation and carbonization gas of A step, under 350～500 ℃ of temperature condition, carry out fractionation separates, isolate wood tar oil and wood gas, reclaim wood tar oil;
C, the isolated wood gas of B step is carried out condensation separation get plant extract stoste under normal temperature condition;
D, with the plant extract stoste of C step, undertaken that filtration, purification separates or standing separation more than 60 days by active carbon layer, the refined plant sewage-treating agent.
2. high-efficiency plant sewage-treating agent as claimed in claim 1, the pyrogenation and carbonization that it is characterized in that described A step are to finish on the conventional distillation apparatus of prior art.
3. high-efficiency plant sewage-treating agent as claimed in claim 1, the fractionation separates that it is characterized in that described B step are to finish in the conventional multistage fractionation decontaminating separator of prior art.
4. high-efficiency plant sewage-treating agent as claimed in claim 1, the condensation separation that it is characterized in that described C step are to finish in the conventional condensation separator of prior art.
5. one kind is utilized the method for high-efficiency plant treating sewage by sewage treating agent according to claim 1, comprises conventional sewage treatment process step, it is characterized in that the sewage admission port place at conventional sewage treatment process, presses following input refined plant sewage-treating agent:
For the sewage of COD,, in the refined plant sewage-treating agent input sewage with 100～200 times of dilutions, stir 30～40min by the amount that sewage per ton is thrown 0.25～2.5Kg greater than 8.5mg/L;
Perhaps
For the sewage of COD,, in the refined plant sewage-treating agent input sewage with 300～500 times of dilutions, stir 30～40min by the amount that sewage per ton is thrown 0.25～2.5Kg less than 8.5mg/L.
6. sewage water treatment method as claimed in claim 5, it is characterized in that described stirring coexists by sewage and plant sewage-treating agent one flows in the closed conduit and finishes, perhaps finish by the whipping device of existing sewage work, with effect by plant sewage-treating agent self, organism in the degradation of sewage, improve the sewage quality, thereby reduce postorder sewage disposal load, reduce the unit volume sewage disposal time.
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| CN2009100947246A CN101602527B (en) | 2009-07-14 | 2009-07-14 | High-efficiency plant wastewater treating agent and method for treating wastewater by same |
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| CN101602527B true CN101602527B (en) | 2011-06-22 |
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| CN101947327B (en) * | 2010-08-30 | 2013-11-06 | 江门市和馨香精技术有限公司 | Deodorant |
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| CN105016421A (en) * | 2015-07-30 | 2015-11-04 | 李平兰 | Industrial oil-containing sewage treatment agent |
| CN104986813A (en) * | 2015-07-30 | 2015-10-21 | 李平兰 | Industrial oily wastewater treatment method |
| CN105236586B (en) * | 2015-11-14 | 2017-05-03 | 云南农业大学 | Method for absorbing tetracycline antibiotic pollutants in water through ageratina adenophora |
| CN105384258B (en) * | 2015-12-16 | 2019-04-12 | 河南理工大学 | A kind of multipurpose efficient rural sewage treatment agent and the method using its processing sewage |
| CN106745371A (en) * | 2016-12-10 | 2017-05-31 | 钦州学院 | A kind of plant effluent inorganic agent and preparation method thereof |
| CN107892395A (en) * | 2017-10-31 | 2018-04-10 | 烟台职业学院 | A kind of special sewage-treating agent of trade effluent and preparation method thereof |
| CN108147550A (en) * | 2017-11-30 | 2018-06-12 | 安徽宏远职业卫生技术服务有限公司 | A kind of special sewage-treating agent of trade effluent and preparation method thereof |
| CN108913175B (en) * | 2018-06-21 | 2020-09-08 | 中国矿业大学 | Combined cycle system for treating organic wastewater based on waste biomass catalytic pyrolysis products and use method thereof |
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