CN102295345A - Novel process of sewage treatment anaerobic synergism - Google Patents
Novel process of sewage treatment anaerobic synergism Download PDFInfo
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- CN102295345A CN102295345A CN2011101632698A CN201110163269A CN102295345A CN 102295345 A CN102295345 A CN 102295345A CN 2011101632698 A CN2011101632698 A CN 2011101632698A CN 201110163269 A CN201110163269 A CN 201110163269A CN 102295345 A CN102295345 A CN 102295345A
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Abstract
The invention relates to a novel process of sewage treatment anaerobic synergism, which is characterized in that the process comprises the following steps: adding anaerobic microbial strains and microbial carrier substance into a hydrolytic pond, building environment beneficial to microbial cell body growth and propagation in an anaerobic reactor; after the strains and the carrier are added, keeping the anaerobic reactor in a sulfuration state for 3-5 days, and ensuring the tight combination of the strain and the carrier; after the anaerobic reactor, performing air stripping, oxidation, and precipitation in an anoxic pond, realizing the selective reflux of upper organic sludge anaerobic sludge by stratification sludge discharge, removing thiobacillus and large-particle inorganic substance which are not suitable for the anaerobic reactor, refluxing organic substance containing S and N to the anoxic pond. Under the condition of the novel process, anaerobic microbial strains and microbial carrier substance are added into the hydrolytic pond, and environment beneficial to microbial cell body growth and propagation is built in the anaerobic reactor, which bring into full play the catalytic conversion, biological flocculation, and adsorption functions of zymocytes and hydrolytic bacteria under extreme conditions.
Description
Technical field
The present invention relates to a kind of sewage disposal anaerobism synergy novel process, belong to the paper industry sewage treatment area.
Background technology
Sewage disposal is made in the process in papermaking company, needing will be from the waste water of pulp preparation system through after one section slanted screen, the two sections primary treatment such as slanted screen, through the settling tank of pipe-line transportation to Sewage Plant, through after the preliminary sedimentation, sewage is drained into hydrolytic tank, utilize its hydrolytic action by fermenting bacteria property bacterium, change the molecular structure of pollutent, and then through anaerobic reactor, enter anoxic pond, issue volatilization ferment and hydrolysis bacterium catalyzed conversion, biofloculation, adsorption function under extreme conditions at anoxia condition; Enter oxidation ditch through anoxic pond, enter two sections settling tanks again, realize reuse then, yet at present in paper industry, the anaerobism efficient of common process is lower, is easy to cause the loss of anaerobic species, and follow-up sewage disposal has been caused very big burden.
Summary of the invention
According to the prior art deficiency, technical problem to be solved by this invention is: a kind of sewage disposal anaerobism synergy novel process is provided, avoids anaerobic species to run off, improve anaerobism efficient.
The technical solution adopted for the present invention to solve the technical problems is: a kind of sewage disposal anaerobism synergy novel process is provided, it is characterized in that may further comprise the steps:
(1) add anaerobion bacterial classification and microbe carrier material at hydrolytic tank, build the environment that is beneficial to extracellular microbial bulk-growth and breeding simultaneously in anaerobic reactor, temperature is 35 ℃ in the control anaerobic reactor, and sulfided state, PH are 6.9-7.1;
(2) after adding bacterial classification and carrier, kept anaerobic reactor interior sulfided state 3-5 days, assurance bacterial classification and carrier are combined closely;
(3) arrive anoxic pond stripping, oxidation, post precipitation through anaerobic reactor, realize the organic sludge anaerobic sludge on selectivity backflow top by the layering spoil disposal, removal is not suitable for sulfuration bacterium, the macrobead inorganics of anaerobic reactor, and the organic substance that contains S, N is back to anaerobic pond.
Wherein being provided with strength in the hydrolytic tank stirs.
Described microbe carrier material is inorganic ashes.
Wherein the consumption of microbial strains and microbe carrier material is common process in the industry.
Described sulfided state is the fluid materials form of motion.
Wherein arrive anoxic pond stripping, oxidation, post precipitation through anaerobic reactor, by the different subsidence rate of the different proportion of various mud, the inorganics class is deposited on the bottom, pond does not have utility value, needs to get rid of; Organically mud belongs to available mud class on the top in pond; Realize selectivity backflow part anaerobic sludge by the layering spoil disposal, remove the sulfuration bacterium that is not suitable for anaerobic reactor, macrobead inorganics etc., the organic substance that contains S, N is partly refluxed to anaerobic pond and guarantees that the anaerobism nutritive substance does not run off, and bacterial classification does not run off.
The macrobead inorganics is handled by the method for above settling rate; The mass mortality behind process stripping and well-oxygenated environment of sulfuration bacterium and sulfide no longer can survive or transform.
The invention has the beneficial effects as follows: under new process conditions, add anaerobion bacterial classification and microbe carrier material at hydrolytic tank, in anaerobic reactor, build the environment that is beneficial to extracellular microbial bulk-growth and breeding simultaneously, give full play to fermentation and hydrolysis bacterium catalyzed conversion, biofloculation, adsorption function under extreme conditions.
Under new process conditions, anaerobic reactor will be brought into play more important role, and it can realize the selectivity optimization to anaerobic species, improve the activity and the quantity of anaerobic species, reduce the loss of anaerobic species, control the cenobium quantity that various anaerobism suppress microorganism, realize the raising of anaerobism efficient.
In new process conditions, because anaerobic reactor efficient under new process conditions is higher, simultaneously the energy waste of sewage disposal anaerobism follow-up processing flow and the usage quantity of chemical feedstocks fall greatly, reach energy saving purposes.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
In hydrolytic tank, add this anaerobion bacterial classification of methanobacteria and ashes carrier, after hydrolytic tank enters anaerobic pond, we must build the environment that helps microorganism cells growth and breeding: keep the temperature of anaerobic reactor in the anaerobic pond to reach 35 ℃, and make it keep sulfided state, the potential of hydrogen that keeps liquid pH value 6.9-7.1 in the anaerobic pond, keep 3 days time under this condition, assurance methanobacteria and carrier ashes can be combined closely.Afterwards, enter anoxic pond and carry out stripping, oxidation, precipitation process, the organic substance that contains S, N is partly refluxed to anaerobic pond and guarantees that the anaerobism nutritive substance does not run off, and bacterial classification does not run off.
The COD:200mg/L of sewage behind this treatment process, SS:50mg/L, PH:7.5, ammonia nitrogen: 4.5mg/L. reaches reuse standard.
Embodiment 2
In hydrolytic tank, add this anaerobion bacterial classification of methanobacteria and ashes carrier, after hydrolytic tank enters anaerobic pond, we must build the environment that helps microorganism cells growth and breeding: keep the temperature of anaerobic reactor in the anaerobic pond to reach 35 ℃, and make it keep sulfided state, the potential of hydrogen that keeps liquid pH value 6.9-7.1 in the anaerobic pond, keep 5 days time under this condition, assurance methanobacteria and carrier ashes can be combined closely.Afterwards, enter anoxic pond and carry out stripping, oxidation, precipitation process, the organic substance that contains S, N is partly refluxed to anaerobic pond and guarantees that the anaerobism nutritive substance does not run off, and bacterial classification does not run off.
The COD:202mg/L of sewage behind this treatment process, SS:51mg/L, PH:7, ammonia nitrogen: 4mg/L.Reach reuse standard.
Claims (3)
1. sewage disposal anaerobism synergy novel process is characterized in that may further comprise the steps:
(1) add anaerobion bacterial classification and microbe carrier material at hydrolytic tank, build the environment that is beneficial to extracellular microbial bulk-growth and breeding simultaneously in anaerobic reactor, temperature is 35 ℃ in the control anaerobic reactor, and sulfided state, PH are 6.9-7.1;
(2) after adding bacterial classification and carrier, kept anaerobic reactor interior sulfided state 3-5 days, assurance bacterial classification and carrier are combined closely;
(3) arrive anoxic pond stripping, oxidation, post precipitation through anaerobic reactor, realize the organic sludge anaerobic sludge on selectivity backflow top by the layering spoil disposal, removal is not suitable for sulfuration bacterium, the macrobead inorganics of anaerobic reactor, and the organic substance that contains S, N is back to anaerobic pond.
2. sewage disposal anaerobism synergy novel process according to claim 1 is characterized in that described microbe carrier material is inorganic ashes.
3. sewage disposal anaerobism synergy novel process according to claim 1 is characterized in that the fluid materials form of described sulfided state for motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101632698A CN102295345A (en) | 2011-06-17 | 2011-06-17 | Novel process of sewage treatment anaerobic synergism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101632698A CN102295345A (en) | 2011-06-17 | 2011-06-17 | Novel process of sewage treatment anaerobic synergism |
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| CN102295345A true CN102295345A (en) | 2011-12-28 |
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| CN2011101632698A Pending CN102295345A (en) | 2011-06-17 | 2011-06-17 | Novel process of sewage treatment anaerobic synergism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186518A (en) * | 2016-07-21 | 2016-12-07 | 苏州苏沃特环境科技有限公司 | A kind of BCAS system processing difficult degradation and brine waste |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030201225A1 (en) * | 2002-04-30 | 2003-10-30 | Josse Juan Carlos | Organic slurry treatment process |
| CN1931749A (en) * | 2006-09-27 | 2007-03-21 | 山东贵和显星纸业股份有限公司 | Paper-making effluent purifying treatment process |
| CN101229944A (en) * | 2007-08-28 | 2008-07-30 | 北京大学 | Intensified biological treatment method for high strength ammonia wastewater |
| CN101503267A (en) * | 2009-03-13 | 2009-08-12 | 哈尔滨工业大学 | Coal chemical industry wastewater treating method |
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2011
- 2011-06-17 CN CN2011101632698A patent/CN102295345A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030201225A1 (en) * | 2002-04-30 | 2003-10-30 | Josse Juan Carlos | Organic slurry treatment process |
| CN1931749A (en) * | 2006-09-27 | 2007-03-21 | 山东贵和显星纸业股份有限公司 | Paper-making effluent purifying treatment process |
| CN101229944A (en) * | 2007-08-28 | 2008-07-30 | 北京大学 | Intensified biological treatment method for high strength ammonia wastewater |
| CN101503267A (en) * | 2009-03-13 | 2009-08-12 | 哈尔滨工业大学 | Coal chemical industry wastewater treating method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186518A (en) * | 2016-07-21 | 2016-12-07 | 苏州苏沃特环境科技有限公司 | A kind of BCAS system processing difficult degradation and brine waste |
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Application publication date: 20111228 |