CN105198020A - Compound multiple-effect sewage treatment agent based on biogas residues - Google Patents
Compound multiple-effect sewage treatment agent based on biogas residues Download PDFInfo
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- CN105198020A CN105198020A CN201510674495.0A CN201510674495A CN105198020A CN 105198020 A CN105198020 A CN 105198020A CN 201510674495 A CN201510674495 A CN 201510674495A CN 105198020 A CN105198020 A CN 105198020A
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Abstract
The invention discloses a compound multiple-effect sewage treatment agent based on biogas residues. The biogas residues are uniformly mixed with sodium hydroxide, and water is added until the water content of the mixture reaches 60%-90%; then the mixture is heated to reach 80 DEG C-120 DEG C, the temperature is maintained for 0.5-1.5 hours, and a first material is obtained; medical stone and diatomite are uniformly mixed with concentrated sulphuric acid, the mixture is composted for more than 8 hours, and then a second material is obtained; the first material, the second material and sodium pyrophosphate are uniformly mixed and are subjected to microwave heating, then the temperature is maintained for 0.5-1.5 hours when the mixture is heated to reach 80 DEG C-120 DEG C, and a semi-finished product is obtained; finally, the semi-finished product is sequentially cooled, filtered, dried and smashed, and then the compound multiple-effect sewage treatment agent based on the biogas residues is obtained. The compound multiple-effect sewage treatment agent has a good treatment effect on more than 20 pollution indexes, treated and purified water is clear, transparent, colorless and odorless, all the indexes can meet the first-level B standard according to Discharge Standards of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002), and part of indexes reach the first-level A standard.
Description
Technical field
The present invention relates to sewage treatment area, specifically a kind of compound multiple-effect sewage-treating agent based on natural pond slag.
Background technology
Environment protection directly affects the Sustainable development of Chinese national economy.In the Economic development of China's the past few decades, owing to ignoring developing environment protection, result in the situation that present stage environmental pollution is very serious.Though took a large amount of measure of control in recent years, environment became bad trend further and was still continuing.China is one of the most serious country of environmental pollution in the world, no matter is city, or rural area, and the air of China, river, lake, ocean and soil etc. are all subject 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 large atmospheric pollution in the world ten, in more than 600 city, the whole nation, air quality meet national standard reference less than 10.The degree of nationwide acid rain harm and region also expanding day.
In the annual sewage discharge in the whole nation, only the sanitary sewage of 10% and the industrial sewage of 70% are processed, and wherein about have the water outlet of half Industrial Waste Water Treatments facility not reach discharging standards, all the other untreated sewages then directly enter in rivers and lakes, cause the water surrounding of China to be subject to severe contamination and destruction; The quantity discharged of town domestic sewage is just along with city-building and development and in the trend increased progressively.According to statistics, in 110 key sections of the whole nation seven large water systems and inland river, what belong to 4 classes and 5 class water bodys accounts for 39%; Urban ground water pollutions is generally serious, and in the trend worsened further, 136 flow through in the river in city, belong to 4 classes, 5 classes and more than 5 class standards up to 76.8%; The urban groundwater of about 50% is subject to pollution in various degree; Larger freshwater lake such as the Eutrophic Extents such as Dian Chi, Taihu Lake and Chaohu in the whole nation aggravate year by year; The drinking water source in some areas is subject to severe contamination, causes serious harm to people ' s health.Municipal wastes and industrial solid castoff grow with each passing day, and trade waste adds up accumulating amount more than 6,600,000,000 tons, take up an area more than 50,000 hectares, and more than 200 city is absorbed among rubbish encirclement.
With regard to sewage disposal investment cost and working cost, calculate by ton water cost 1500-2000 unit and working cost 0.8-1.4 yuan/ton, the municipal sewage plant that China not yet invests to build needs one-time investment 1,000 hundred million yuan, add municipal pipe network construction, invest more than 2,000 hundred million yuan, annual running cost 25000000000 yuan again.And the fund of China's construction of municipal effluent plant, 90% comes from various loan, annual 20000000000 yuan for Sewage Plant construction, each project is on average repaid 10 years phases, and after several years, principal and interest will more than 30,000,000,000 yuan, and running cost and principal and interest account for 1% of China GDP; And current municipal sewage treatment, only have social benefit, there is no economic benefit, therefore, investment huge like this and working cost, to the China of economics of underdevelopment, a white elephant beyond doubt.
And determine that the principal element of municipal sewage plant's investment and running cost is the selection of sewage treatment process and technology, that current China urban sewage treatment process generally adopts is traditional activated sludge process, oxidation ditch, SBR etc., these ripe and effective treatment process, are widely used in various places.But for a long period, hamper the construction of municipal sewage plant of China because energy consumption is large, working cost is high, some sewage works built up are also because of the reason that energy consumption is high, are in stopping production and half end-of-life state for a long time simultaneously.Within one quite long from now on period, energy consumption problem will become the bottleneck of municipal sewage treatment.The energy consumption problem of Sewage Plant can be solved, rationally carry out energy distribution, become the key factor determining sewage work's on-road efficiency quality, also be the deciding factor of following new sewage work's feasibility analysis, exploitation is applicable to efficient, the low consumption of China's national situation and can meets emission request, and capital construction and the low New Technology about Wastewater Treatment of working cost and novel process, will be the only way of following Designing Sewage Treatment Plant and operation, be of great practical significance.
Summary of the invention
The object of the present invention is to provide a kind of compound multiple-effect sewage-treating agent based on natural pond slag, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of compound multiple-effect sewage-treating agent based on natural pond slag, according to the raw material of weight part be: natural pond slag 80-120 part, sodium hydroxide 10-20 part, medical stone and each 40-60 part of diatomite, mass concentration are vitriol oil 8-20 part of more than 90%, and as trisodium phosphate 2-20 part of synergistic agent;
Its preparation technology is as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 60%-90%; Then be heated to 80 DEG C-120 DEG C, insulation 0.5-1.5 hour, obtains the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in more than 8 hours;
(3) the first material, the second material and trisodium phosphate are mixed, and microwave heating while stirring, after microwave heating is to 80 DEG C-120 DEG C, then be incubated 0.5-1.5 hour, obtain work in-process; Wherein microwave heating frequency be 1200-3600MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain the compound multiple-effect sewage-treating agent based on natural pond slag.
As the further scheme of the present invention: the described compound multiple-effect sewage-treating agent based on natural pond slag, according to the raw material of weight part be: natural pond slag 90-110 part, sodium hydroxide 14-16 part, medical stone and each 45-55 part of diatomite, mass concentration are vitriol oil 12-16 part of 95%, and as trisodium phosphate 5-15 part of synergistic agent.
As the further scheme of the present invention: the described compound multiple-effect sewage-treating agent based on natural pond slag, according to the raw material of weight part be: each 50 parts of natural pond slag 100 parts, 15 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 14 parts of 95%, and as trisodium phosphate 8-12 part of synergistic agent.
As the further scheme of the present invention: natural pond slag mixes with sodium hydroxide in (1) by step, adding water to water ratio is 70%-80%.
As the further scheme of the present invention: step is heated to 90 DEG C-110 DEG C in (1), insulation 0.8-1.2 hour.
As the further scheme of the present invention: in step (2), the accumulation time is 12-24 hour.
As the further scheme of the present invention: in step (3) after microwave heating is to 90 DEG C-110 DEG C, then be incubated 0.8-1.2 hour.
As the further scheme of the present invention: in step (3), microwave heating frequency is 2400MHz.
Compared with prior art, the invention has the beneficial effects as follows: this multiple-effect sewage-treating agent all has good treatment effect to the contamination index of more than 20 kinds, and as clear as crystal, the colorless and odorless of purifying water body after process, its each index all can meet GB18918-2002 " urban wastewater treatment firm pollutant emission standard " one-level B standard, and wherein part index number can reach one-level A standard.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Embodiment 1
Based on a compound multiple-effect sewage-treating agent for natural pond slag, according to the raw material of weight part be: each 40 parts of natural pond slag 80 parts, 20 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 8 parts of 98%, and as the trisodium phosphate 2 of synergistic agent.
The preparation method of the described compound multiple-effect sewage-treating agent based on natural pond slag, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 60%; Then be heated to 120 DEG C, be incubated 0.5 hour, obtain the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in 24 hours;
(3) the first material, the second material and trisodium phosphate are mixed, and microwave heating while stirring, after microwave heating is to 80 DEG C, then be incubated 1.5 hours, obtain work in-process: wherein microwave heating frequency is 1200MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain the compound multiple-effect sewage-treating agent based on natural pond slag.
Embodiment 2
Based on a compound multiple-effect sewage-treating agent for natural pond slag, according to the raw material of weight part be: each 60 parts of natural pond slag 120 parts, 10 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 20 parts of 90%, and as the trisodium phosphate 20 parts of synergistic agent.
The preparation method of the described compound multiple-effect sewage-treating agent based on natural pond slag, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 90%; Then be heated to 80 DEG C, be incubated 1.5 hours, obtain the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in 8 hours;
(3) the first material, the second material and trisodium phosphate are mixed, and microwave heating while stirring, after microwave heating is to 120 DEG C, then be incubated 0.5 hour, obtain work in-process; Wherein microwave heating frequency be 3600MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain the compound multiple-effect sewage-treating agent based on natural pond slag.
Embodiment 3
Based on a compound multiple-effect sewage-treating agent for natural pond slag, according to the raw material of weight part be: each 50 parts of natural pond slag 100 parts, 15 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 14 parts of 95%, and as the trisodium phosphate 10 parts of synergistic agent.
The preparation method of the described compound multiple-effect sewage-treating agent based on natural pond slag, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 75%; Then be heated to 100 DEG C, be incubated 1 hour, obtain the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in 12 hours;
(3) the first material, the second material and trisodium phosphate are mixed, and microwave heating while stirring, after microwave heating is to 100 DEG C, then be incubated 1 hour, obtain work in-process; Wherein microwave heating frequency be 2400MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain the compound multiple-effect sewage-treating agent based on natural pond slag.
Embodiment 4
Based on a compound multiple-effect sewage-treating agent for natural pond slag, according to the raw material of weight part be: each 40 parts of natural pond slag 80 parts, 10 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 8 parts of 90%, and as the trisodium phosphate 2 parts of synergistic agent.
The preparation method of the described compound multiple-effect sewage-treating agent based on natural pond slag, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 60%; Then be heated to 80 DEG C, be incubated 0.5 hour, obtain the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in 8 hours;
(3) the first material, the second material and trisodium phosphate are mixed, and microwave heating while stirring, after microwave heating is to 80 DEG C, then be incubated 0.5 hour, obtain work in-process; Wherein microwave heating frequency be 1200MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain the compound multiple-effect sewage-treating agent based on natural pond slag.
Embodiment 5
Based on a compound multiple-effect sewage-treating agent for natural pond slag, according to the raw material of weight part be: each 60 parts of natural pond slag 120 parts, 20 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 20 parts of 98%, and as the trisodium phosphate 20 parts of synergistic agent.
The preparation method of the described compound multiple-effect sewage-treating agent based on natural pond slag, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 90%; Then be heated to 120 DEG C, be incubated 1.5 hours, obtain the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in 24 hours;
(3) the first material, the second material and trisodium phosphate are mixed, and microwave heating while stirring, after microwave heating is to 120 DEG C, then be incubated 1.5 hours, obtain work in-process; Wherein microwave heating frequency be 3600MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain the compound multiple-effect sewage-treating agent based on natural pond slag.
Comparative example 1
A kind of sewage-treating agent, according to the raw material of weight part is: natural pond slag 100 parts, 15 parts, sodium hydroxide, medical stone 50 parts, mass concentration are the vitriol oil 14 parts of 95%.
The preparation method of described sewage-treating agent, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 75%; Then be heated to 100 DEG C, be incubated 1 hour, obtain the first material;
(2) medical stone is mixed with the vitriol oil, pile up and obtain the second material in 12 hours;
(3) by the first material, the second mixing of materials evenly, and microwave heating while stirring, after microwave heating is to 100 DEG C, then be incubated 1 hour, obtain work in-process; Wherein microwave heating frequency be 2400MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain sewage-treating agent.
Comparative example 2
A kind of sewage-treating agent, according to the raw material of weight part is: natural pond slag 100 parts, 15 parts, sodium hydroxide, 50 parts, diatomite, mass concentration are the vitriol oil 14 parts of 95%.
The preparation method of described sewage-treating agent, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 75%; Then be heated to 100 DEG C, be incubated 1 hour, obtain the first material;
(2) diatomite is mixed with the vitriol oil, pile up and obtain the second material in 12 hours;
(3) by the first material, the second mixing of materials evenly, and microwave heating while stirring, after microwave heating is to 100 DEG C, then be incubated 1 hour, obtain work in-process; Wherein microwave heating frequency be 2400MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain sewage-treating agent.
Comparative example 3
A kind of sewage-treating agent, according to the raw material of weight part is: each 50 parts of stalk 100 parts, 15 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 14 parts of 95%.
The preparation method of described sewage-treating agent, concrete steps are as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 75%; Then be heated to 100 DEG C, be incubated 1 hour, obtain the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in 12 hours;
(3) by the first material, the second mixing of materials evenly, and electrically heated while stirring, after being heated to 100 DEG C, then be incubated 1 hour, obtain work in-process;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain multiple-effect sewage-treating agent.
Purification experiment: the sewage-treating agent process adopting above-described embodiment and comparative example to prepare is carried out purification test the pollutant load sewage that exceeds standard.
First respectively according to 1kg/m
3, 1.5kg/m
3, 2kg/m
3addition in pollutant load exceeds standard sewage, throw in treatment agent, then stir or aeration treatment agent is fully mixed with sewage; Leave standstill after 12 hours again, inspection by sampling is carried out to purifying water body, and statistic mixed-state result; Find, colorless and odorless as clear as crystal based on the purifying water body after the compound multiple-effect sewage-treating agent process of natural pond slag prepared by embodiment 1-5, its each index all can meet GB18918-2002 " urban wastewater treatment firm pollutant emission standard " one-level B standard, and wherein part index number can reach one-level A standard; The many index secondary standard of the purifying water body after common sewage-treating agent process prepared by comparative example 1-3 also can not meet, and only has minority index can meet one-level B standard, does not have an index can meet one-level A standard.
Below for embodiment 3 and comparative example 2 pairs of sewage do purification experiment experiment statistics result.
Form illustrates:
1, the usage ratio of purifying agent for polluted water is respectively: it is 2kg/m that A represents addition
3, to represent addition be 1.5kg/m to B
3, to represent addition be 1kg/m to C
3.
2, show Plays to require as GB18918-2002 " urban wastewater treatment firm pollutant emission standard " one-level B standard.
3, after standard-required, sewage sample detected value and purification, the unit of detected value is mg/L (except colourity, pH value and excrement colibacillus group number).
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (8)
1. the compound multiple-effect sewage-treating agent based on natural pond slag, it is characterized in that, according to the raw material of weight part be: natural pond slag 80-120 part, sodium hydroxide 10-20 part, medical stone and each 40-60 part of diatomite, mass concentration are vitriol oil 8-20 part of more than 90%, and as trisodium phosphate 2-20 part of synergistic agent; Its preparation technology is as follows:
(1) mixed with sodium hydroxide by natural pond slag, adding water to water ratio is 60%-90%; Then be heated to 80 DEG C-120 DEG C, insulation 0.5-1.5 hour, obtains the first material;
(2) medical stone and diatomite are mixed with the vitriol oil, pile up and obtain the second material in more than 8 hours;
(3) the first material, the second material and trisodium phosphate are mixed, and microwave heating while stirring, after microwave heating is to 80 DEG C-120 DEG C, then be incubated 0.5-1.5 hour, obtain work in-process; Wherein microwave heating frequency be 1200-3600MHz;
(4) finally work in-process are cooled successively, filter, dry, pulverize, namely obtain the compound multiple-effect sewage-treating agent based on natural pond slag.
2. the compound multiple-effect sewage-treating agent based on natural pond slag according to claim 1, it is characterized in that, according to the raw material of weight part be: natural pond slag 90-110 part, sodium hydroxide 14-16 part, medical stone and each 45-55 part of diatomite, mass concentration are vitriol oil 12-16 part of 95%, and as trisodium phosphate 5-15 part of synergistic agent.
3. the compound multiple-effect sewage-treating agent based on natural pond slag according to claim 1, it is characterized in that, according to the raw material of weight part be: each 50 parts of natural pond slag 100 parts, 15 parts, sodium hydroxide, medical stone and diatomite, mass concentration are the vitriol oil 14 parts of 95%, and as trisodium phosphate 8-12 part of synergistic agent.
4. according to the compound multiple-effect sewage-treating agent based on natural pond slag one of claim 1-3 Suo Shu, it is characterized in that, natural pond slag mixes with sodium hydroxide in (1) by step, and adding water to water ratio is 70%-80%.
5. the compound multiple-effect sewage-treating agent based on natural pond slag according to claim 4, it is characterized in that, step is heated to 90 DEG C-110 DEG C in (1), insulation 0.8-1.2 hour.
6. according to the compound multiple-effect sewage-treating agent based on natural pond slag one of claim 1-3 Suo Shu, it is characterized in that, in step (2), the accumulation time is 12-24 hour.
7., according to the compound multiple-effect sewage-treating agent based on natural pond slag one of claim 1-3 Suo Shu, it is characterized in that, in step (3) after microwave heating is to 90 DEG C-110 DEG C, then be incubated 0.8-1.2 hour.
8. the compound multiple-effect sewage-treating agent based on natural pond slag according to claim 7, is characterized in that, in step (3), microwave heating frequency is 2400MHz.
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| CN106006996A (en) * | 2016-05-26 | 2016-10-12 | 许婷 | Pharmaceutical wastewater treatment agent and preparation method thereof |
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| CN102764633A (en) * | 2012-07-17 | 2012-11-07 | 沈阳化工大学 | Method for preparing thalli/ bentonite organic and inorganic composite adsorbent |
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