CN104671588A - Method for treating pulping and papermaking wastewater - Google Patents
Method for treating pulping and papermaking wastewater Download PDFInfo
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- CN104671588A CN104671588A CN201510004150.4A CN201510004150A CN104671588A CN 104671588 A CN104671588 A CN 104671588A CN 201510004150 A CN201510004150 A CN 201510004150A CN 104671588 A CN104671588 A CN 104671588A
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Abstract
The invention discloses a method for treating pulping and papermaking wastewater. The method comprises the following steps: (1) filtering the impurities in the pulping and papermaking wastewater by virtue of a filtering screen, thereby obtaining sewage without impurities; (2) regulating the pH value of the sewage without impurities to 5-6, adding the sewage into a reactor, adding activated sludge, phosphate-solubilizing bacteria, nitrogen-fixing bacteria, urea and inorganic phosphate and treating by using a sequencing batch reactor activated sludge method, thereby obtaining the purified water; and (3) filtering the purified water through a resin filtering membrane and discharging the water. According to the treatment method disclosed by the invention, the phosphate-solubilizing bacteria, nitrogen-fixing bacteria and inorganic phosphate are combined and added according to a certain ratio, phosphatase is secreted by the phosphate-solubilizing bacteria, utilization of a dissolving agent of unavailable phosphorus in water is promoted, and the addition of an inorganic phosphorus source is reduced; the absorption and utilization of microbes on the nitrogen source can be increased by virtue of the nitrogen-fixing bacteria; and finally, the sewage is discharged by virtue of the nitrogen-fixing bacteria and is filtered again, the cost is saved, the absorption rate of nitrogen and phosphorus is improved, and the content of total nitrogen and phosphorus in the discharged water is reduced.
Description
technical field:
The present invention relates to a kind for the treatment of process of pulping papermaking sewerage, belong to pulping wastewater treatment technical field.
background technology:
Pulp and paper industry wastewater discharge is large, and in waste water, platform has a large amount of Mierocrystalline celluloses, xylogen and various pharmaceutical chemicals, and oxygen-consumption is large, is one of primary pollution source of contaminate environment.The U.S. is classified as one of six large public hazards, and Japan is classified as one of five large public hazards.In China, 1/6, COD and SS that pulp and paper industry wastewater discharge accounts for trade effluent all account for 1/4, and paper waste pollutes so serious. and the Chinese people people's livelihood is drawn together and causes serious impact with ecotope, therefore, effectively must process paper-making effluent.
Paper-making effluent concentration is high, and COD, BOD content is large, and its treatment process is different compared with commonly industrial wastewater, and at present, the treatment process of paper waste mainly contains Physical, chemical method, biological process and physico-chemical processes.Wherein being most widely used of biological process, has become one of main method of paper waste second-stage treatment.Current pulping papermaking sewerage biological treatment stage, the few phosphorus waste water of nitrogen stress is while supplementary N, P nutrition, final outflow water but has strict emission standard to N, P index, not only to guarantee rationally effectively to supplement N, P nutrition at leading portion, guarantee microbial growth is bred, and will keep back segment water outlet N, P can stably reaching standard.Maintain balance therebetween.
summary of the invention:
The present invention seeks to, be used for making up the deficiencies in the prior art, and a kind for the treatment of process of pulping papermaking sewerage is provided.
To achieve these goals, technical scheme of the present invention is as follows:
A treatment process for pulping papermaking sewerage, comprises following step:
(1) pulping papermaking sewerage is passed through strainer filtering impurity, obtain the sewage of decon;
(2) PH is regulated by the sewage of decon after 5-6, to be placed in reactor, to add activated sludge, phosphorus-solubilizing bacteria, vinelandii, urea and mineral-type microcosmic salt, the water after being purified with sequencing batch active sludge process;
(3) by the water after the purification obtained in step (2) by discharging after resin filter film.
The treatment process of described a kind of pulping papermaking sewerage, in the sewage parts by weight 1000 parts of decon, the activated sludge added, phosphorus-solubilizing bacteria, vinelandii, urea and mineral-type microcosmic salt are respectively with weight parts: 100-120 part, 0.8-1.2 part, 0.2-0.6 part, 11-18 part and 5-10 part.
The treatment process of described a kind of pulping papermaking sewerage, described mineral-type microcosmic salt is primary ammonium phosphate, SODIUM PHOSPHATE, MONOBASIC or Sodium phosphate dibasic.
The treatment process of described a kind of pulping papermaking sewerage, also adds cellulose-decomposing bacterium in treating pond in step (2).
The treatment process of described a kind of pulping papermaking sewerage, the add-on of described cellulose-decomposing bacterium is the 0.1-0.3 ‰ of decon sewage weight.
The treatment process of described a kind of pulping papermaking sewerage, the aperture of described resin filter film is 0.4-0.6 μm.
Beneficial effect of the present invention is as follows:
Treatment process of the present invention adds after phosphorus-solubilizing bacteria, vinelandii and mineral-type microcosmic salt being combined with certain proportion, secretes Phosphoric acid esterase by phosphorus-solubilizing bacteria, promotes that the solvating agent of invalid phosphorus in water utilizes, reduces adding of mineral-type phosphorus source; Microorganism absorbing nitrogenous source is increased by vinelandii; Final step is by discharging after resin filter film, and sewage is filtered again, reduces cost, improves the specific absorption of nitrogen phosphorus, decreases the content of total nitrogen and total phosphorus in discharge water; Finally reach the effect of pollution reduction, and cost-saved 0.04 yuan of water per ton.
Paper waste some contain xylogen and Mierocrystalline cellulose etc. some be difficult to degrade material, add the decomposition efficiency that cellulose-decomposing bacterium can strengthen fiber and xylogen in waste water.The aperture of filtering membrane is 0.4-0.6 μm and can retains small molecular weight impurity.
embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
A treatment process for pulping papermaking sewerage, comprises following step:
(1) pulping papermaking sewerage is passed through strainer filtering impurity, obtain the sewage of decon;
(2) regulate PH to be after 6 in the sewage of decon, be placed in reactor, add activated sludge, phosphorus-solubilizing bacteria, vinelandii, urea, primary ammonium phosphate and cellulose-decomposing bacterium, the water after being purified with sequencing batch active sludge process;
(3) by the water after the purification obtained in step (2) by discharging after resin filter film.
Wherein, in the sewage parts by weight 1000 parts of decon, the activated sludge added, phosphorus-solubilizing bacteria, vinelandii, urea, primary ammonium phosphate and cellulose-decomposing bacterium are respectively with weight parts: 100 parts, 0.8 part, 0.6 part, 18 parts, 5 parts and 0.1 part.The aperture of described resin filter film is 0.4-0.6 μm.
Embodiment 2
A treatment process for pulping papermaking sewerage, comprises following step:
(1) pulping papermaking sewerage is passed through strainer filtering impurity, obtain the sewage of decon;
(2) regulate PH to be after 5 in the sewage of decon, be placed in reactor, add activated sludge, phosphorus-solubilizing bacteria, vinelandii, urea, SODIUM PHOSPHATE, MONOBASIC and cellulose-decomposing bacterium, the water after being purified with sequencing batch active sludge process;
(3) by the water after the purification obtained in step (2) by discharging after resin filter film.
Wherein, in the sewage parts by weight 1000 parts of decon, the activated sludge added, phosphorus-solubilizing bacteria, vinelandii, urea, SODIUM PHOSPHATE, MONOBASIC and cellulose-decomposing bacterium are respectively with weight parts: 120 parts, 1.2 parts, 0.2 part, 11 parts, 10 parts and 0.3 part.The aperture of described resin filter film is 0.4-0.6 μm.
Embodiment 3
A treatment process for pulping papermaking sewerage, comprises following step:
(1) pulping papermaking sewerage is passed through strainer filtering impurity, obtain the sewage of decon;
(2) regulate PH to be after 6 in the sewage of decon, be placed in reactor, add activated sludge, phosphorus-solubilizing bacteria, vinelandii, urea and Sodium phosphate dibasic, the water after being purified with sequencing batch active sludge process;
(3) by the water after the purification obtained in step (2) by discharging after resin filter film.
Wherein, in the sewage parts by weight 1000 parts of decon, the activated sludge added, phosphorus-solubilizing bacteria, vinelandii, urea and Sodium phosphate dibasic are respectively with weight parts: 115 parts, 0.9 part, 0.5 part, 15 parts and 9 parts.The aperture of described resin filter film is 0.4-0.6 μm.
Embodiment 4
A treatment process for pulping papermaking sewerage, comprises following step:
(1) pulping papermaking sewerage is passed through strainer filtering impurity, obtain the sewage of decon;
(2) regulate PH to be after 5 in the sewage of decon, be placed in reactor, add activated sludge, phosphorus-solubilizing bacteria, vinelandii, urea, mineral-type microcosmic salt and cellulose-decomposing bacterium, the water after being purified with sequencing batch active sludge process;
(3) by the water after the purification obtained in step (2) by discharging after resin filter film.
Wherein, in the sewage parts by weight 1000 parts of decon, the activated sludge added, phosphorus-solubilizing bacteria, vinelandii, urea, mineral-type microcosmic salt and cellulose-decomposing bacterium are respectively with weight parts: 108 parts, 1.1 parts, 0.3 part, 13 parts, 7 parts and 0.2 part.The aperture of described resin filter film is 0.4-0.6 μm.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. a treatment process for pulping papermaking sewerage, is characterized in that, comprises following step:
(1) pulping papermaking sewerage is passed through strainer filtering impurity, obtain the sewage of decon;
(2) PH is regulated by the sewage of decon after 5-6, to be placed in reactor, to add activated sludge, phosphorus-solubilizing bacteria, vinelandii, urea and mineral-type microcosmic salt, the water after being purified with sequencing batch active sludge process;
(3) by the water after the purification obtained in step (2) by discharging after resin filter film.
2. the treatment process of a kind of pulping papermaking sewerage according to claim 1, it is characterized in that, in the sewage parts by weight 1000 parts of decon, the activated sludge added, phosphorus-solubilizing bacteria, vinelandii, urea and mineral-type microcosmic salt are respectively with weight parts: 100-120 part, 0.8-1.2 part, 0.2-0.6 part, 11-18 part and 5-10 part.
3. the treatment process of a kind of pulping papermaking sewerage according to claim 1 and 2, is characterized in that, described mineral-type microcosmic salt is primary ammonium phosphate, SODIUM PHOSPHATE, MONOBASIC or Sodium phosphate dibasic.
4. the treatment process of a kind of pulping papermaking sewerage according to claim 1, is characterized in that, also adds cellulose-decomposing bacterium in step (2) in treating pond.
5. the treatment process of a kind of pulping papermaking sewerage according to claim 4, is characterized in that, the add-on of described cellulose-decomposing bacterium is the 0.1-0.3 ‰ of decon sewage weight.
6. the treatment process of a kind of pulping papermaking sewerage according to claim 1, is characterized in that, the aperture of described resin filter film is 0.4-0.6 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510004150.4A CN104671588B (en) | 2015-01-06 | 2015-01-06 | A kind of processing method of pulping papermaking sewerage |
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| CN201510004150.4A CN104671588B (en) | 2015-01-06 | 2015-01-06 | A kind of processing method of pulping papermaking sewerage |
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| CN104671588A true CN104671588A (en) | 2015-06-03 |
| CN104671588B CN104671588B (en) | 2016-08-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399269A (en) * | 2015-10-27 | 2016-03-16 | 桂林瑞丰环保微生物应用研究所 | Dual-aeration gained microbiological treatment method for industrial wastewater |
| CN105417837A (en) * | 2015-10-28 | 2016-03-23 | 桂林瑞丰环保微生物应用研究所 | Method for treating industrial wastewater by micro-biological degradation |
| CN111792794A (en) * | 2020-07-24 | 2020-10-20 | 淄博圣泉纸业有限公司 | Environment-friendly treatment method for pulping and papermaking wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156694A (en) * | 1996-12-18 | 1997-08-13 | 冶金工业部国家环境保护局武汉环境保护研究院 | Comprehensive draining treating technique for black liquor and midcourse water from caustic soda process straw pulp paper mill |
| FR2806420A1 (en) * | 2000-03-16 | 2001-09-21 | Arpad Pollak | Microbial mixture for fixing nitrogen and increasing solubility of phosphorus compounds to improve fertility of soil, comprises the co-fermentation of Azotobacter croococcum, Azospirillum brasiliense and Bacillus megaterium |
| CN1631819A (en) * | 2004-12-03 | 2005-06-29 | 天津科技大学 | Process for circulating and reusing wastewater in production of case plank paper by wastepaper |
| CN102101728A (en) * | 2009-12-21 | 2011-06-22 | 广西民族大学 | Method for treating papermaking sewage with microorganism |
| CN103589672A (en) * | 2013-11-15 | 2014-02-19 | 海南迈田生物科技有限公司 | Method for preparing effective microorganism water quality purification agent |
-
2015
- 2015-01-06 CN CN201510004150.4A patent/CN104671588B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156694A (en) * | 1996-12-18 | 1997-08-13 | 冶金工业部国家环境保护局武汉环境保护研究院 | Comprehensive draining treating technique for black liquor and midcourse water from caustic soda process straw pulp paper mill |
| FR2806420A1 (en) * | 2000-03-16 | 2001-09-21 | Arpad Pollak | Microbial mixture for fixing nitrogen and increasing solubility of phosphorus compounds to improve fertility of soil, comprises the co-fermentation of Azotobacter croococcum, Azospirillum brasiliense and Bacillus megaterium |
| CN1631819A (en) * | 2004-12-03 | 2005-06-29 | 天津科技大学 | Process for circulating and reusing wastewater in production of case plank paper by wastepaper |
| CN102101728A (en) * | 2009-12-21 | 2011-06-22 | 广西民族大学 | Method for treating papermaking sewage with microorganism |
| CN103589672A (en) * | 2013-11-15 | 2014-02-19 | 海南迈田生物科技有限公司 | Method for preparing effective microorganism water quality purification agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399269A (en) * | 2015-10-27 | 2016-03-16 | 桂林瑞丰环保微生物应用研究所 | Dual-aeration gained microbiological treatment method for industrial wastewater |
| CN105417837A (en) * | 2015-10-28 | 2016-03-23 | 桂林瑞丰环保微生物应用研究所 | Method for treating industrial wastewater by micro-biological degradation |
| CN111792794A (en) * | 2020-07-24 | 2020-10-20 | 淄博圣泉纸业有限公司 | Environment-friendly treatment method for pulping and papermaking wastewater |
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| CN104671588B (en) | 2016-08-24 |
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