CN105060639A - Reeling waste water processing method - Google Patents
Reeling waste water processing method Download PDFInfo
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- CN105060639A CN105060639A CN201510485345.5A CN201510485345A CN105060639A CN 105060639 A CN105060639 A CN 105060639A CN 201510485345 A CN201510485345 A CN 201510485345A CN 105060639 A CN105060639 A CN 105060639A
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Abstract
The invention discloses a reeling waste water processing method and relates to the technical field of waste water treatment. The method comprises the following steps that A. the waste water passes a filter screen and enters into a hydrolysis pond that contains hydrochloric acid for hydrolysis; B. after the hydrolysis, the waste water enters into a cooling pond, and when the temperature of the waste water is cooled to 15 DEG C to 35 DEG C, the waste water then enters into an anaerobic tank that contains denitrifying phosphate-accumulating organisms; C. the waste water enters into an anoxic pond that contains denitrifying bacteria at a temperature of 15 DEG C to 35 DEG C; D. the waste water then enters into an aerobic pond that contains nitrobacteria and nitrosobacteria at a temperature of 15 DEG C to 35 DEG C; an aeration apparatus is turned on; E. the waste water enters into a sedimentation pond; a coagulant is added to precipitate sludge to obtain a precipitate, and the precipitate and water are separately discharged; and F. the waste water enters into a solution with a decolorant for decolorization. Compared to the prior art, the method can effectively reduce the content of total nitrogen, total phosphorus and sericin protein in the reeling waste water, thereby obtaining transparent and clear water.
Description
Technical field
The present invention relates to technical field of waste water processing, especially a kind for the treatment of process of the waste water for the treatment of producing in reeling silk production process.
Background technology
Number of patent application: 2013100735944 intermediate processings disclosing sericin in a kind of silk reeling wastewater, comprises and uses Citric Acid, usp, Anhydrous Powder and Sodium phosphate dibasic to be hydrolyzed, and adopts agitator to stir silk reeling wastewater and is precipitated out by sericin.Simultaneously the deficiency that this method exists to remove nitrogen in silk reeling wastewater and phosphorus.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind for the treatment of process of silk reeling wastewater, and it can solve the problem simultaneously can not removing nitrogen and phosphorus when processing silk reeling wastewater.
In order to solve the problem, the technical solution adopted in the present invention is: the treatment process of this silk reeling wastewater, comprises agitator, comprises the following steps:
A. waste water is entered by filter screen that concentration is housed is be hydrolyzed in the hydrolytic tank of the hydrochloric acid of 6mol/l ~ 8mol/l, stir 5 minutes ~ 7 minutes, hydrolysis temperature is 120 DEG C ~ 130 DEG C, and hydrolysis time is 7 hours ~ 9 hours;
B. the waste water after hydrolysis enters cooling pool, and waste water is cooled to 15 DEG C ~ 35 DEG C to enter to include in the anaerobic pond of Denitrifying Phosphate Accumulating Organisms, and stir 4 minutes ~ 7 minutes, the dissolved oxygen concentration in described anaerobic pond is 2mg/l ~ 2.5mg/l, 1 hour ~ 3 hours reaction times;
C. through comprising the anoxic pond that the temperature of anti-nitrate is 15 DEG C ~ 35 DEG C, stir 7 minutes ~ 15 minutes, the dissolved oxygen concentration of described anoxic pond is 0.05mg/l ~ 0.15mg/l, 1 hour ~ 2 hours reaction times;
D. again through including the Aerobic Pond that the temperature of digestion bacterium and sub-digestion bacterium is 15 DEG C ~ 35 DEG C, open aerating apparatus, stir 5 minutes ~ 10 minutes in described Aerobic Pond, the dissolved oxygen concentration of described Aerobic Pond is 3mg/l ~ 5mg/l, 1.5 hours ~ 2.5 hours reaction times;
E. enter settling tank to add coagulating agent sludge settling is precipitated thing, discharge water and sediment respectively;
F. enter the solution putting into discoloring agent to decolour, transparency is greater than 100.
In technique scheme, technical scheme can also be more specifically: the coagulating agent of step e is polymerize aluminum chloride.
Further: described in step D, aerating apparatus comprises gas blower, one end of tracheae is equipped with in the exit of described gas blower, and the other end of described tracheae extend in described Aerobic Pond.
Further: described filter screen is 100 order ~ 300 object steel meshes.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
Adopt hydrochloric acid hydrolysis and control concentration and the hydrolysis time of hydrochloric acid, can hydrolysis degree be improved, removing the sericin in waste water filature; Anaerobic pond utilizes the effect of Denitrifying Phosphate Accumulating Organisms, carries out denitrogenation dephosphorizing, and nitrate can be utilized as electron acceptor(EA) at anoxic phases, carries out excess and inhales phosphorus effect, thus reach the object of denitrogenation dephosphorizing simultaneously while nitrate reduction is become nitrogen; In Aerobic Pond, carry out nitrification, by the effect of nitrifier and nitrococcus by ammonia nitrogen, nitrite nitrogen is converted into nitric nitrogen and enters further nitrogen.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described:
Embodiment 1:
The treatment process of this silk reeling wastewater, comprises agitator, comprises the following steps:
A. waste water is entered by 100 object steel meshes that concentration is housed is be hydrolyzed in the hydrolytic tank of the hydrochloric acid of 6mol/l, stir 5 minutes, hydrolysis temperature is 120 DEG C, and hydrolysis time is 7 hours;
B. the waste water after hydrolysis enters cooling pool, and waste water is cooled to 15 DEG C to enter to include in the anaerobic pond of Denitrifying Phosphate Accumulating Organisms, and stir 4 minutes, the dissolved oxygen concentration in described anaerobic pond is 2mg/l, 1 hour reaction times;
C. through comprising the anoxic pond that the temperature of anti-nitrate is 5 DEG C, stir 7 minutes, the dissolved oxygen concentration of described anoxic pond is 0.05mg/l, 1 hour reaction times;
D. again through including the Aerobic Pond that the temperature of digestion bacterium and sub-digestion bacterium is 15 DEG C, open aerating apparatus, stir 5 minutes in described Aerobic Pond, the dissolved oxygen concentration of described Aerobic Pond is 3mg/l, 1.5 hours reaction times;
This aerating apparatus comprises gas blower, and one end of tracheae is equipped with in the exit of this gas blower, and the other end of described tracheae extend in Aerobic Pond.
E. enter the settling tank being added with coagulating agent and sludge settling is precipitated thing, discharge water and sediment respectively, this coagulating agent is polymerize aluminum chloride;
F. enter in the solution being added with discoloring agent and decolour, transparency is greater than 100.
Embodiment 2:
The treatment process of this silk reeling wastewater, comprises agitator, comprises the following steps:
A. waste water is entered by 300 object steel meshes that concentration is housed is be hydrolyzed in the hydrolytic tank of the hydrochloric acid of 8mol/l, stir 7 minutes, hydrolysis temperature is 130 DEG C, and hydrolysis time is 9 hours;
B. the waste water after hydrolysis enters cooling pool, and waste water is cooled to 35 DEG C to enter to include in the anaerobic pond of Denitrifying Phosphate Accumulating Organisms, and stir 7 minutes, the dissolved oxygen concentration in described anaerobic pond is 2.5mg/l, 3 hours reaction times;
C. through comprising the anoxic pond that the temperature of anti-nitrate is 35 DEG C, stir 15 minutes, the dissolved oxygen concentration of described anoxic pond is 0.15mg/l, 2 hours reaction times;
D. again through including the Aerobic Pond that the temperature of digestion bacterium and sub-digestion bacterium is 35 DEG C, open aerating apparatus, stir 10 minutes in described Aerobic Pond, the dissolved oxygen concentration of described Aerobic Pond is 5mg/l, 2.5 hours reaction times;
This aerating apparatus comprises gas blower, and one end of tracheae is equipped with in the exit of this gas blower, and the other end of described tracheae extend in Aerobic Pond.
E. enter the settling tank being added with coagulating agent and sludge settling is precipitated thing, discharge water and sediment respectively, this coagulating agent is polymerize aluminum chloride;
F. enter in the solution being added with discoloring agent and decolour, transparency is greater than 100.
Embodiment 3:
The treatment process of this silk reeling wastewater, comprises agitator, comprises the following steps:
A. waste water is entered by 200 object steel meshes that concentration is housed is be hydrolyzed in the hydrolytic tank of the hydrochloric acid of 7mol/l, stir 6 minutes, hydrolysis temperature is 125 DEG C, and hydrolysis time is 8 hours;
B. the waste water after hydrolysis enters cooling pool, and waste water is cooled to 25 DEG C to enter to include in the anaerobic pond of Denitrifying Phosphate Accumulating Organisms, and stir 5 minutes, the dissolved oxygen concentration in described anaerobic pond is 2.25mg/l, 2 hours reaction times;
C. through comprising the anoxic pond that the temperature of anti-nitrate is 25 DEG C, stir 11 minutes, the dissolved oxygen concentration of described anoxic pond is 0.1mg/l, 1.5 hours reaction times;
D. again through including the Aerobic Pond that the temperature of digestion bacterium and sub-digestion bacterium is 25 DEG C, open aerating apparatus, stir 7 minutes in described Aerobic Pond, the dissolved oxygen concentration of described Aerobic Pond is 4mg/l, 2 hours reaction times;
This aerating apparatus comprises gas blower, and one end of tracheae is equipped with in the exit of this gas blower, and the other end of described tracheae extend in Aerobic Pond;
E. enter the settling tank being added with coagulating agent and sludge settling is precipitated thing, discharge water and sediment respectively, this coagulating agent is polymerize aluminum chloride;
F. enter in the solution being placed with discoloring agent and decolour, transparency is greater than 100.
Total nitrogen content through above-mentioned steps process is 12mg/l, and total phosphorous is 0.3mg/l, and transparency is greater than 100, meets country's " urban wastewater treatment firm pollutant emission standard ", and standard No. is the primary standard requirement of GB18918-2002.
Claims (4)
1. a treatment process for silk reeling wastewater, comprises agitator, it is characterized in that comprising the following steps:
A. waste water is entered by filter screen that concentration is housed is be hydrolyzed in the hydrolytic tank of the hydrochloric acid of 6mol/l ~ 8mol/l, stir 5 minutes ~ 7 minutes, hydrolysis temperature is 120 DEG C ~ 130 DEG C, and hydrolysis time is 7 hours ~ 9 hours;
B. the waste water after hydrolysis enters cooling pool, and waste water is cooled to 15 DEG C ~ 35 DEG C to enter to include in the anaerobic pond of Denitrifying Phosphate Accumulating Organisms, and stir 4 minutes ~ 7 minutes, the dissolved oxygen concentration in described anaerobic pond is 2mg/l ~ 2.5mg/l, 1 hour ~ 3 hours reaction times;
C. through comprising the anoxic pond that the temperature of anti-nitrate is 15 DEG C ~ 35 DEG C, stir 7 minutes ~ 15 minutes, the dissolved oxygen concentration of described anoxic pond is 0.05mg/l ~ 0.15mg/l, 1 hour ~ 2 hours reaction times;
D. again through including the Aerobic Pond that the temperature of digestion bacterium and sub-digestion bacterium is 15 DEG C ~ 35 DEG C, open aerating apparatus, stir 5 minutes ~ 10 minutes in described Aerobic Pond, the dissolved oxygen concentration of described Aerobic Pond is 3mg/l ~ 5mg/l, 1.5 hours ~ 2.5 hours reaction times;
E. enter settling tank to add coagulating agent sludge settling is precipitated thing, discharge water and sediment respectively;
F. enter the solution putting into discoloring agent to decolour, transparency is greater than 100.
2. the treatment process of silk reeling wastewater according to claim 1, is characterized in that: the coagulating agent of step e is polymerize aluminum chloride.
3. the treatment process of silk reeling wastewater according to claim 1 and 2, is characterized in that: described in step D, aerating apparatus comprises gas blower, and one end of tracheae is equipped with in the exit of described gas blower, and the other end of described tracheae extend in described Aerobic Pond.
4. the treatment process of Dun silk reeling wastewater according to claim 3, is characterized in that: described filter screen is 100 order ~ 300 object steel meshes.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100978125B1 (en) * | 2009-11-13 | 2010-08-25 | 주식회사 부강테크 | Wastewater treatment appliance capable of producing biogas and liquid fertilizer with high quality and improving water qulaity on discharging |
| CN103588363A (en) * | 2013-11-27 | 2014-02-19 | 广西春晖环保工程有限责任公司 | Reeling waste water deep treating method and apparatus |
| CN104030491A (en) * | 2014-06-29 | 2014-09-10 | 广西融安县金鼎制丝有限责任公司 | Treatment method for water for silk reeling |
| CN104129891A (en) * | 2014-08-04 | 2014-11-05 | 广西融安县金鼎制丝有限责任公司 | Silk reeling wastewater processing method |
| CN104496107A (en) * | 2014-11-14 | 2015-04-08 | 安徽省广德新丰丝绸有限公司 | Silk reeling waste water processing technology |
-
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- 2015-08-10 CN CN201510485345.5A patent/CN105060639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100978125B1 (en) * | 2009-11-13 | 2010-08-25 | 주식회사 부강테크 | Wastewater treatment appliance capable of producing biogas and liquid fertilizer with high quality and improving water qulaity on discharging |
| CN103588363A (en) * | 2013-11-27 | 2014-02-19 | 广西春晖环保工程有限责任公司 | Reeling waste water deep treating method and apparatus |
| CN104030491A (en) * | 2014-06-29 | 2014-09-10 | 广西融安县金鼎制丝有限责任公司 | Treatment method for water for silk reeling |
| CN104129891A (en) * | 2014-08-04 | 2014-11-05 | 广西融安县金鼎制丝有限责任公司 | Silk reeling wastewater processing method |
| CN104496107A (en) * | 2014-11-14 | 2015-04-08 | 安徽省广德新丰丝绸有限公司 | Silk reeling waste water processing technology |
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