CN107352681A - A kind of silicon removing method of high ammonium high salt high silicon catalyst waste water - Google Patents

A kind of silicon removing method of high ammonium high salt high silicon catalyst waste water Download PDF

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Publication number
CN107352681A
CN107352681A CN201710612424.7A CN201710612424A CN107352681A CN 107352681 A CN107352681 A CN 107352681A CN 201710612424 A CN201710612424 A CN 201710612424A CN 107352681 A CN107352681 A CN 107352681A
Authority
CN
China
Prior art keywords
silicon
waste water
salt
ammonium
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710612424.7A
Other languages
Chinese (zh)
Inventor
殷喜平
郭嘉
周岩
吉春红
杨凌
赵旭
王丁
申涛
齐麟
李叶
徐淑朋
白建江
张萌
陈亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Tianhua Institute of Chemical Machinery and Automation Co Ltd
Sinopec Catalyst Co
China Haohua Engineering Co Ltd
Original Assignee
China Petroleum and Chemical Corp
Tianhua Institute of Chemical Machinery and Automation Co Ltd
Sinopec Catalyst Co
China Haohua Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Tianhua Institute of Chemical Machinery and Automation Co Ltd, Sinopec Catalyst Co, China Haohua Engineering Co Ltd filed Critical China Petroleum and Chemical Corp
Priority to CN201710612424.7A priority Critical patent/CN107352681A/en
Publication of CN107352681A publication Critical patent/CN107352681A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

The present invention relates to a kind of silicon removing method of high ammonium high salt high silicon catalyst waste water, optimum condition is adjusted to remove silicon polluter in high ammonium high-silicon high salt catalyst wastewater by using flocculant, magnesia mixture, soda ash, alkali, flocculation aid is added, it is higher to silicon removal efficiency, while also have preferable removal effect to hardness present in waste water, suspension etc..

Description

A kind of silicon removing method of high ammonium high salt high silicon catalyst waste water
Technical field
The invention belongs to field of waste water treatment, and in particular to a kind of silicon removing method of high ammonium high salt high silicon catalyst waste water, Realize the removal of the silicon polluter of the comprehensive wastewater with the high silicon characteristic of high ammonium high salt discharged in catalyst production process.
Background technology
Catalyst has in industries such as PETROLEUM PROCESSING, chemical fertilizer industry, chemicals synthesis, high polymer material preparation, environmental protection Have important and be widely applied.But in oil refining catalyst production process, it will usually the substantial amounts of production waste water of discharge, it is such useless Contain substantial amounts of silicon polluter in water, usual content reaches milligrams per liters up to a hundred, and also has in waste water hundreds of even thousands of Ammonium of high concentration etc., certain difficulty is brought for the processing of waste water.
At present, for such waste water, generally use adds the technique removal silicon of simple precipitation after alkali and flocculant, however, This method is bad to the removal effect of silicon, simultaneously because in containing wastewater from catalyst high content ammonium influence, often result in pH value of waste water It is unstable, the final removal effect for causing silicon is less than 60%.Thus, the removal for high content silicon in such waste water must be sought Preferable handling process is sought, to prevent the pollution of the devices such as subsequent film processing and evaporation.
The content of the invention
It is an object of the invention to solve prior art problem, there is provided a kind of high ammonium high salt high silicon catalyst waste water removes silicon Method.
Present invention employs following scheme:A kind of silicon removing method of high ammonium high salt high silicon catalyst waste water, including following place Manage step:
(1)1-3ppm soluble ferric iron salt will be added in the high high silicon waste water of ammonium high salt of Catalyst Production discharge, be stirred, gather Close reaction 3-5min;
(2)Soluble magnesium salt is added according to Mg/Si=2.5-5.5 mol ratio, is stirred, reaction time 5-10min;
(3)According to CO3 2-/Ca2+=1.1-1.5 mol ratio adds sodium carbonate, while adds alkali regulation pH, is stirred, final pH It is adjusted to 10.5-11;
(4)0.3-1mg/L PAM is added, stirs, reaction time 5-10min, staticly settles, carries out mud-water separation.
Preferably, step(1)In the soluble trivalent iron salt added be preferably poly ferric chloride flocculant agent.
Preferably, step(2)Described in soluble magnesium salt be preferably MgCl2
Preferably, step(3)Middle selection NaOH regulation pH value of waste water is 10.5-11.
Preferably, step(4)The middle reaction time is preferably 8min.
Compared with prior art, silicon removing method of the invention has the advantages that:
(1)By using addition flocculant(PFC), magnesia mixture(MgCl2), soda ash, alkali, flocculation aid(PAM)Optimum condition is adjusted to come Silicon polluter in efficient high ammonium high-silicon high salt catalyst wastewater is removed, overcomes such waste water during except silicon by ammonium shadow Ring the shortcomings that larger so that silicon clearance is higher.
(2)It is preferred that adjusting pH value from sodium hydroxide, ensure that the operation of the follow-up high salt water treatment technology of such waste water is steady It is qualitative.
(3)Except silicon simultaneously, method of the invention also have to hardness present in waste water, suspension etc. preferably remove effect Fruit.
Embodiment
With reference to embodiment, the present invention will be further described:
Embodiment 1
1st, the raw water that the containing wastewater from catalyst discharged using certain Catalyst Production company is demonstrate,proved as the present embodiment, specific water quality data are shown in Table 1.
The influent quality of table 1
2nd, raw water, which enters, removes system on silicon, and flocculant is separately added into according to corresponding concentration and reaction time in invention(PFC), magnesia mixture (MgCl2), soda ash, alkali, flocculation aid(PAM)After medicament, pH value is adjusted to 10.8-11, the production after efficiently softening removes system on silicon Water water quality is as shown in table 2, and the removal effect through repeated detection silica is shown in Table 3.
Efficiently softening removes system on silicon effluent quality to table 2
The silica removal effect of table 3
It can be seen that the silicon removing method by the present invention is taken out to silicon polluter in high ammonium high-silicon high salt catalyst wastewater, gram Such waste water has been taken had a great influence during except silicon by ammonium the shortcomings that so that silicon clearance increases substantially, reach 70% with On, even as high as 88%, far above the handling process of prior art(60% or so).Meanwhile the calcium-magnesium content of effluent quality and Total alkalinity is also very low, it is seen that except silicon, simultaneously, method of the invention also has preferably to hardness present in waste water, suspension etc. Removal effect.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any The change or replacement expected without creative work, it should all be included within the scope of the present invention.Therefore, it is of the invention Protection domain should be determined by the scope of protection defined in the claims.

Claims (5)

1. a kind of silicon removing method of high ammonium high salt high silicon catalyst waste water, it is characterised in that including following processing step:
(1)1-3ppm soluble ferric iron salt will be added in the high high silicon waste water of ammonium high salt of Catalyst Production discharge, be stirred, gather Close reaction 3-5min;
(2)Soluble magnesium salt is added according to Mg/Si=2.5-5.5 mol ratio, is stirred, reaction time 5-10min;
(3)According to CO3 2-/Ca2+=1.1-1.5 mol ratio adds sodium carbonate, while adds alkali regulation pH, is stirred, final pH It is adjusted to 10.5-11;
(4)0.3-1mg/L PAM is added, stirs, reaction time 5-10min, staticly settles, carries out mud-water separation.
2. handling process according to claim 1, it is characterised in that step(1)In the soluble ferric iron salt added it is preferred For poly ferric chloride flocculant agent.
3. handling process according to claim 1, it is characterised in that step(2)Described in soluble magnesium salt be preferably MgCl2
4. handling process according to claim 1, it is characterised in that step(3)It is middle to be from NaOH regulation pH value of waste water 10.5-11。
5. handling process according to claim 1, it is characterised in that step(4)The middle reaction time is preferably 8min.
CN201710612424.7A 2017-07-25 2017-07-25 A kind of silicon removing method of high ammonium high salt high silicon catalyst waste water Pending CN107352681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710612424.7A CN107352681A (en) 2017-07-25 2017-07-25 A kind of silicon removing method of high ammonium high salt high silicon catalyst waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710612424.7A CN107352681A (en) 2017-07-25 2017-07-25 A kind of silicon removing method of high ammonium high salt high silicon catalyst waste water

Publications (1)

Publication Number Publication Date
CN107352681A true CN107352681A (en) 2017-11-17

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Country Status (1)

Country Link
CN (1) CN107352681A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114573141A (en) * 2022-03-11 2022-06-03 佛山市佳利达环保科技股份有限公司 Method for removing silicon dioxide from high-salt printing and dyeing wastewater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104176870A (en) * 2014-08-25 2014-12-03 西安热工研究院有限公司 Viscous oil wastewater pretreatment and evaporation desalting system and method
CN104556475A (en) * 2014-12-23 2015-04-29 北京赛诺水务科技有限公司 Pretreatment technology of high-salinity wastewater
CN105417826A (en) * 2015-12-30 2016-03-23 北京清大国华环境股份有限公司 Catalyst waste water zero discharge method and device
CN105541017A (en) * 2015-12-30 2016-05-04 北京清大国华环境股份有限公司 Method and device for realizing zero emission of strong brine
CN105800820A (en) * 2014-12-31 2016-07-27 北京清大国华环境股份有限公司 Treatment method and device for silicon containing wastewater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104176870A (en) * 2014-08-25 2014-12-03 西安热工研究院有限公司 Viscous oil wastewater pretreatment and evaporation desalting system and method
CN104556475A (en) * 2014-12-23 2015-04-29 北京赛诺水务科技有限公司 Pretreatment technology of high-salinity wastewater
CN105800820A (en) * 2014-12-31 2016-07-27 北京清大国华环境股份有限公司 Treatment method and device for silicon containing wastewater
CN105417826A (en) * 2015-12-30 2016-03-23 北京清大国华环境股份有限公司 Catalyst waste water zero discharge method and device
CN105541017A (en) * 2015-12-30 2016-05-04 北京清大国华环境股份有限公司 Method and device for realizing zero emission of strong brine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114573141A (en) * 2022-03-11 2022-06-03 佛山市佳利达环保科技股份有限公司 Method for removing silicon dioxide from high-salt printing and dyeing wastewater

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Application publication date: 20171117

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