CN100545106C - A kind of sewage water treatment method that is used for acetylene - Google Patents
A kind of sewage water treatment method that is used for acetylene Download PDFInfo
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- CN100545106C CN100545106C CNB2007101140470A CN200710114047A CN100545106C CN 100545106 C CN100545106 C CN 100545106C CN B2007101140470 A CNB2007101140470 A CN B2007101140470A CN 200710114047 A CN200710114047 A CN 200710114047A CN 100545106 C CN100545106 C CN 100545106C
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- sewage
- acetylene
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- water treatment
- treatment method
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Abstract
The invention discloses a kind of treatment process that is used for acetylene sewage, with sewage by settling tank precipitation process step by step, during by filtering, after the adjustment of pH value and the treatment of organic matters of organic, obtaining meeting the water of acetylene industrial production standard.Treatment process of the present invention is simple, the low a kind of sewage water treatment method that is used for acetylene that also adapts to the requirement of acetylene industrial production tap water fully of production cost.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, especially relate to and to be back to a kind of sewage water treatment method that is used for acetylene of industrial acetylene after the sewage disposal.
Background technology
People mainly adopt calcium carbide and water reaction method to produce acetylene gas in industrial acetylene at present, and its reaction formula is CaC
2+ 2H
2O → CaOH
2+ C
2H
2., need a large amount of water.And China is a country that water resources relatively lacks, along with the life and process water to phreatic continuous exploitation, further caused the continuous decline of water level again, aggravated the shortage of water resources more.And the processing of the industrial sewage that produces in the production in current all trades and professions discharging is a urgent problem, industrial sewage as the generation of chlor-alkali production industry, its pH value reaches 9-11, in it SS up to 150 mg/litre about, COD is up to 170 mg/litre, BOD
5Up to 29 mg/litre, NH
3-N needs to handle before discharging up to 6 mg/litre.If industrial sewage is suitably handled the back recycle in the industrial acetylene water or the water in other field; not only reached water resources and carried out recycle to solve the shortage of water resources problem; and can reach the zero release of industrial sewage, effectively protect environment.The method that current people are used for handling trade effluent and sanitary sewage mainly adopts the precipitator method and biological activity method, the former only can remove the levitated objects such as silt in the black water, for the organism in the water, then there is not good effect of removing, can not reach the requirement of acetylene water; Though and the latter is better to suspended solid such as mud and removal effect of organic matter, can reach the requirement of acetylene water, investment is big, produces the operating cost height.
Summary of the invention
But technical problem to be solved by this invention has provided a kind of conserve water resource and treatment process is simple, production cost low and adapt to a kind of sewage water treatment method that is used for acetylene that the acetylene industrial process waters requires fully.
A kind of sewage water treatment method that is used for acetylene of the present invention may further comprise the steps:
1) sewage is come together in carries out the one-level precipitation process in the one-level settling tank, adjust sewage pH value 7-8; And the sewage after the one-level precipitation process promoted pressurization after differential pressure type filters and is delivered to second-level settling pond and carries out two-stage precipitation and handle; According to the production design requirements, be provided with the one-level settling tank, be used to collect industrial production, sanitary sewage, and carry out preliminary precipitation, to remove suspended solids such as silt; Simultaneously because the soda acid content of industrial sewage is higher, so the pH value of sewage is adjusted by adding HCl or NaOH in sewage, and can carry out pH by pH detection meter at any time and detect the add-on of adjusting soda acid, determine the add-on of soda acid by detected pH value, this is known general knowledge to those skilled in the art; If sewage pH value meets the requirements, be transported to second-level settling pond after then can will and filtering through the lifting of the sewage after one-level precipitation process pressurization and further the solid suspended particles such as impurity that contain carried out sedimentation, floating through lift pump, and as undesirable, then can further add HCl or NaOH the pH value of sewage is adjusted, to meet the requirements; Can adopt before sewage promotes pressurization back differential pressure type and filters adding HCl or NaOH that the pH value of sewage is adjusted so that subsequent disposal, its pH value of production waste as current chlor-alkali industry can reach 11-12, so in sewage, add the HCl mode and adjust the pH value by be provided with mixing tank in the lift pump exit, improve mixture homogeneity, and adjust the add-on of HCl by the detection that pH detects meter, make the pH value reach the requirement of 7-8.Filtration can adopt the intelligent differential pressure type filter that sewage is filtered, to improve filtration, purification effect to sewage, and by filter effect is detected, reach requirement if filter, can enter second-level settling pond and carry out the two-stage precipitation processing, as do not reach requirement, then can filter again; And if filtered sewage meets acetylene industrial process waters index through monitoring its every finger, then can be delivered directly to production process and be used for producing;
2) to two-stage precipitation sewage add clorox and the vacancy reason of exposing to the sun to eliminate organism in the sewage, sewage overflow behind cascade filtration enters three grades of settling tanks and carries out three grades of precipitation process then; After handling through the one-level settling tank, the suspended solids object particles such as silt in the sewage are removed totally substantially, but organic cod, BOD in the sewage
5, NH
3-N value is all higher, so need to remove the interior organism of sewage to meet the requirement of acetylene industrial process waters index, employing adds clorox and exposes to the sun the vacancy reason in sewage, with the cyanogen that contains in the effective decomposition sewage, phosphorous, sulfur-bearing and nitrogenous substances, various high chroma organism etc. are difficult to the various organic substances removed by the common sky oxidation of exposing to the sun, destroy the rock steady structure of nearly all organic molecule rapidly, make it to change into harmless inorganics or harmless easy-to-handle organic substance fully, and by detection to each value of organism, adjust the add-on of clorox, make interior each value of organism of sewage reach COD≤110.8 mg/litre, BOD
5≤ 22.4 mg/litre, NH
3-N≤5.2 mg/litre, total mercury≤0.004 mg/litre meeting acetylene industrial process waters index, and is adjusted the add-on of clorox by detected sewage desired value, and this is known general knowledge to those skilled in the art; Enter three grades of settling tanks through the cascade filtration overflow then and carry out three grades of precipitation process, and detect filter effect at any time, and by filter effect is detected, reach requirement if filter, can enter three grades of settling tanks and carry out three grades of precipitation process, as do not reach requirement, then can filter again.Cascade filtration can adopt the filtration unit that saw flower and gac are housed, and to improve filter effect, has also improved the repeating utilization factor of filtration unit.
3) sewage reaches the index request of industrial acetylene through three grades of precipitation process, and sewage promotes after three grades of precipitation process are qualified and stores as the acetylene water.Is pH value 7-8 three grades of precipitations by detecting the various component targets of control, SS≤73.6 mg/litre, COD≤110.8 mg/litre, BOD
5≤ 22.4 mg/litre, NH
3-N≤5.2 mg/litre, total mercury≤0.004 mg/litre is met the needs of industrial acetylene water fully with processing, promotes to store by lift pump and goes with the industrial production that is used for acetylene.And can further handle by monitoring laggard row, to be used for ecological water such as breed and irrigating plant, it is standby also can be stored in the ecological pool that is provided with specially.
Adopt the sewage water treatment method that originally is used for acetylene, method is simple, be easy to control, operating cost is low, can be applicable to the acetylene industrial process waters fully through the water after this method processing, solve the acetylene industrial production and used the disadvantageous effect that underground water resources is caused, not only save water resources, reduce the acetylene expense, also reduced the environmental pollution that the discharging of sanitary sewage and trade effluent causes.
Description of drawings
Accompanying drawing is a kind of schema that is used for the sewage water treatment method of acetylene of the present invention.
Embodiment
Embodiment one
As shown in drawings, have one-level settling tank, second-level settling pond and three grades of settling tanks respectively, one-level settling tank second-level settling pond and three grades of visual sewage loads of settling tank be provided with several so that to the processing of sewage to help the recycle of sewage.Industrial production sewage and sanitary sewage import the one-level settling tank, and each index is pH value 10.44 after testing in the sewage, and SS is 147.27 mg/litre, and COD is 166.55 mg/litre, BOD
5Be 29.01 mg/litre, NH
3-N is 5.22 mg/litre, total mercury is 0.0046 mg/litre, carry out the one-level precipitation process by the one-level settling tank and remove most of particles suspended material in the decontaminated water, and be provided with pH and detect meter and detect sewage pH value at any time, oettIed sewage is promoted pressurization through pump to be filtered through differential pressure type, after removing the impurity that decontaminated water contains, by detection to filtration sewage, reach requirement if filter, be delivered to second-level settling pond and carry out the two-stage precipitation processing further to remove the granule foreign that decontaminated water contains, as do not reach requirement, then can filter again; And, adjust the mixing tank adding HCl that is arranged on the pump discharge place and be adjusted to pH value 7-8 by monitoring to the pH value of sewage;
In second-level settling pond is handled, add clorox to sewage, by its strong oxidizing property energy, contain cyanogen, phosphorous, sulfur-bearing and nitrogenous substances, the various high chroma organism etc. that effectively decompose in the sewage are difficult to the various organic substances removed by the common sky oxidation of exposing to the sun, destroy the rock steady structure of organic molecule rapidly, make it to change into fully harmless inorganics or harmless easy-to-handle organic substance, and the sky precipitation process of exposing to the sun to be eliminating organism in the sewage, and by to COD, BOD in the sewage
5, NH
3The detection of-N and total mercury, the add-on of adjusting clorox is to meet processing requirements, carry out filtrating overflow by the filtration unit that saw flower and gac are housed then, detect filter effect, reach requirement if filter, enter three grades of settling tanks and carry out three grades of precipitation process, as do not reach requirement, then can filter again;
Sewage carries out precipitation process in three grades of settling tanks after, detecting each index of sewage is pH value 7.77, and SS is 72.21 mg/litre, and COD is 110.73 mg/litre, BOD
5Be 21.45 mg/litre, NH
3-N is 5.03 mg/litre, and total mercury is 0.0035 mg/litre, meets the needs of industrial acetylene water fully, can promote by lift pump to store to be used for the industrial production of acetylene.
Embodiment two
As shown in drawings, have one-level settling tank, second-level settling pond and three grades of settling tanks respectively, one-level settling tank second-level settling pond and three grades of visual sewage loads of settling tank be provided with several so that to the processing of sewage to help the recycle of sewage.Industrial production sewage and sanitary sewage import the one-level settling tank, and each index is pH value 10.05 after testing in the sewage, and SS is 147.95 mg/litre, and COD is 163.69 mg/litre, BOD
5Be 29.07 mg/litre, NH
3-N is 5.46 mg/litre, total mercury is 0.0043 mg/litre, carry out the one-level precipitation process and remove most of particles suspended material in the decontaminated water, and be provided with pH and detect meter and detect sewage pH value at any time, oettIed sewage is promoted pressurization through pump to be filtered through differential pressure type, after removing the impurity that decontaminated water contains, by detection to filtration sewage, reach requirement if filter, be delivered to second-level settling pond and carry out the two-stage precipitation processing further to remove the granule foreign that decontaminated water contains, as do not reach requirement, then can filter again; And, adjust the mixing tank adding HCl that is arranged on the pump discharge place and be adjusted to pH value 7-8 by monitoring to the pH value of sewage;
In second-level settling pond is handled, add clorox to sewage, by its strong oxidizing property energy, contain cyanogen, phosphorous, sulfur-bearing and nitrogenous substances, the various high chroma organism etc. that effectively decompose in the sewage are difficult to the various organic substances removed by the common sky oxidation of exposing to the sun, destroy the rock steady structure of organic molecule rapidly, make it to change into fully harmless inorganics or harmless easy-to-handle organic substance, and the sky precipitation process of exposing to the sun to be eliminating organism in the sewage, and by to COD, BOD in the sewage
5, NH
3The detection of-N and total mercury, the add-on of adjusting clorox is to meet processing requirements, carry out filtrating overflow by the filtration unit that saw flower and gac are housed then, detect filter effect, reach requirement if filter, enter three grades of settling tanks and carry out three grades of precipitation process, as do not reach requirement, then can filter again;
Sewage carries out precipitation process in three grades of settling tanks after, each index of sewage is a pH value 7.83, and SS is 72.37 mg/litre, and COD is 109.08 mg/litre, BOD
5Be 21.14 mg/litre, NH
3-N is 4.98 mg/litre, and total mercury is 0.0034 mg/litre, meets the needs of industrial acetylene water fully, can promote by lift pump to store to be used for the industrial production of acetylene.And can further handle by monitoring laggard row, to be used for ecological water such as breed and irrigating plant, it is standby also can be stored in the ecological pool that is provided with specially.
Claims (5)
1, a kind of sewage water treatment method that is used for acetylene is characterized in that may further comprise the steps:
1) sewage is come together in carries out the one-level precipitation process in the one-level settling tank, adjust sewage pH value 7-8; And the sewage after the one-level precipitation process promoted pressurization after differential pressure type filters and is delivered to second-level settling pond and carries out two-stage precipitation and handle;
2) to two-stage precipitation sewage add clorox and the vacancy reason of exposing to the sun to eliminate organism in the sewage, sewage enters three grades of settling tanks through the cascade filtration overflow and carries out three grades of precipitation process then;
3) sewage reaches the index request of industrial acetylene through three grades of precipitation process.
2, a kind of sewage water treatment method that is used for acetylene as claimed in claim 1 is characterized in that: cascade filtration adopts the filtration unit that saw flower and gac are housed.
3, a kind of sewage water treatment method that is used for acetylene as claimed in claim 1 is characterized in that: the adjustment of the pH value of sewage adopts before sewage promotes the back differential pressure type and filters adding HCl or NaOH to adjust.
4, as claim 1,2 or 3 described a kind of sewage water treatment methods that are used for acetylene, it is characterized in that: being used for the acetylene target water after the processing is pH value 7-8, SS≤73.6 mg/litre, COD≤110.8 mg/litre, BOD
5≤ 22.4 mg/litre, NH
3-N≤5.2 mg/litre.
5, a kind of sewage water treatment method that is used for acetylene as claimed in claim 4 is characterized in that: the sewage after the processing can be used for culturing and irrigating plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101140470A CN100545106C (en) | 2007-11-08 | 2007-11-08 | A kind of sewage water treatment method that is used for acetylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101140470A CN100545106C (en) | 2007-11-08 | 2007-11-08 | A kind of sewage water treatment method that is used for acetylene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101177327A CN101177327A (en) | 2008-05-14 |
| CN100545106C true CN100545106C (en) | 2009-09-30 |
Family
ID=39403777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101140470A Expired - Fee Related CN100545106C (en) | 2007-11-08 | 2007-11-08 | A kind of sewage water treatment method that is used for acetylene |
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|---|---|
| CN (1) | CN100545106C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649608B (en) * | 2012-05-15 | 2014-04-02 | 贵州师范大学 | Process method for treating mine acidic waste water |
| CN105314754A (en) * | 2014-06-21 | 2016-02-10 | 高嵩 | Sewage treatment method being suitable for acetylene production |
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2007
- 2007-11-08 CN CNB2007101140470A patent/CN100545106C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101177327A (en) | 2008-05-14 |
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