CN104556471A - Method for restoring phosphatic substances in slow-release water body - Google Patents

Method for restoring phosphatic substances in slow-release water body Download PDF

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Publication number
CN104556471A
CN104556471A CN201410729428.XA CN201410729428A CN104556471A CN 104556471 A CN104556471 A CN 104556471A CN 201410729428 A CN201410729428 A CN 201410729428A CN 104556471 A CN104556471 A CN 104556471A
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China
Prior art keywords
adds
water
wastewater
water body
waste water
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Pending
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CN201410729428.XA
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Chinese (zh)
Inventor
徐炜
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Changzhou University
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Changzhou University
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Priority to CN201410729428.XA priority Critical patent/CN104556471A/en
Publication of CN104556471A publication Critical patent/CN104556471A/en
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5209—Regulation methods for flocculation or precipitation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F2001/5218—Crystallization

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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)
  • Removal Of Specific Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention relates to a method for restoring phosphatic substances in a slow-release water body, belonging to the field of sewage treatment. The method comprises the following steps: taking some wastewater from a certain river, detecting that the phosphorous concentration in the water is 100 mg/L, adding 100 mL of wastewater into a 500 mL beaker, putting in a mechanical mixing reactor, and adding 15 mL of magnesium chloride and 15 mL of ammonium hydrogen phosphate; crystallizing MgNH4PO4.6H2O generated by the reaction, adding 0.8g of composite coagulating agent polyaluminum chloride and 0.6g of polyacrylamide, and enabling precipitating ions in the water solution to form floccules so as to precipitate; standing for 10 minutes, adding 0.1g of modified bentonite and 8 mL of concentrated sulfuric acid to regulate the pH value to 6-8, and adsorbing for 30 minutes; and finally, detecting that the phosphorous concentration in the wastewater is 0.05 mg/L, wherein the removal rate is up to 99% above.

Description

The restorative procedure of phosphorus containg substances in a kind of slowly-releasing water body
Technical field
The present invention relates to a kind of restorative procedure alleviating phosphorus containg substances in water body, belong to sewage treatment area.
Background technology
Phosphorus is the one of the chief elements that earth system maintains life, is also form organism and participate in the requisite element of metabolic processes.The rich of element lacks, and the quality of phosphorus environment comprises growing of all living things of people by directly affecting.In recent years, the water quality in the waters such as river, lake, ocean has the phenomenon, particularly eutrophication problem of deterioration to happen occasionally, and has more and more serious trend.In general, total phosphorus in water mass concentration, more than 20mg/L, namely can think body eutrophication.The outstanding example of body eutrophication is exactly red tide phenomenon, and it is abnormal that red tide not only causes ocean water to occur, changes color, and cause change of water quality, smelly, is degrading marine environmental conditions.
Summary of the invention
The invention provides and a kind ofly repair instant effect and the method that in the high alleviation water body of repair rate, phosphorus containg substances is repaired.
In order to reach above-mentioned purpose, the technical scheme of employing is as follows:
(1) from certain river, get some waste water, detecting phosphorous concentration in water outlet is 100mg/L, and the waste water getting 100mL, in the beaker of 500mL, is then put in mechanically mixing reactor, and adds the magnesium chloride of 15mL and the ammonium hydrogen phosphate of 15mL wherein;
(2) by the MgNH of reaction generation 4pO 46H 2o crystallization, then adds 0.8g composite coagulant polymeric aluminium chloride and 0.6g polyacrylamide, makes the precipitating ion in the aqueous solution form floc sedimentation and precipitate;
(3) by its standing 10min, add 0.1g modified alta-mud, the vitriol oil of 8mL, tune pH is 6-8, absorption 30min;
(4) concentration of Phosphorus From Wastewater is finally detected.
Described modified alta-mud stirs 1-2h in the temperature water of tensio-active agent halogenated phosphates and certain proportioning, and gained suspension adds liquor alumini chloridi and sodium hydroxide successively, is washed by product, filters, dries, grinds and obtain.
Application method of the present invention is: from certain river, get some waste water, detecting phosphorous concentration in water outlet is 100mg/L, the waste water getting 100mL, in the beaker of 500mL, is then put in mechanically mixing reactor, and adds the magnesium chloride of 15mL and the ammonium hydrogen phosphate of 15mL wherein; By the MgNH that reaction generates 4pO 46H 2o crystallization, then adds 0.8g composite coagulant polymeric aluminium chloride and 0.6g polyacrylamide, makes the precipitating ion in the aqueous solution form floc sedimentation and precipitate; By its standing 10min, add 0.1g modified alta-mud, the vitriol oil of 8mL, tune pH is 6-8, absorption 30min; Finally detect the concentration of Phosphorus From Wastewater.
Specific embodiments
A restorative procedure for phosphorus containg substances in slowly-releasing water body, method is:
(1) from certain river, get some waste water, detecting phosphorous concentration in water outlet is 100mg/L, and the waste water getting 100mL, in the beaker of 500mL, is then put in mechanically mixing reactor, and adds the magnesium chloride of 15mL and the ammonium hydrogen phosphate of 15mL wherein;
(2) by the MgNH of reaction generation 4pO 46H 2o crystallization, then adds 0.8g composite coagulant polymeric aluminium chloride and 0.6g polyacrylamide, makes the precipitating ion in the aqueous solution form floc sedimentation and precipitate;
(3) by its standing 10min, add 0.1g modified alta-mud, the vitriol oil of 8mL, tune pH is 6-8, absorption 30min;
(4) concentration of Phosphorus From Wastewater is finally detected.
Example 1
From certain river, get some waste water, detecting phosphorous concentration in water outlet is 100mg/L, and the waste water getting 100mL, in the beaker of 500mL, is then put in mechanically mixing reactor, and adds the magnesium chloride of 15mL and the ammonium hydrogen phosphate of 15mL wherein; By the MgNH that reaction generates 4pO 46H 2o crystallization, then adds 0.8g composite coagulant polymeric aluminium chloride and 0.6g polyacrylamide, makes the precipitating ion in the aqueous solution form floc sedimentation and precipitate; By its standing 10min, add 0.1g modified alta-mud, the vitriol oil of 8mL, adjust pH to be 6, absorption 30min; The concentration finally detecting nitrogen in waste water is 0.02mg/L, and clearance reaches more than 99%, meets discharging standards.
Example 2
From certain river, get some waste water, detecting phosphorous concentration in water outlet is 100mg/L, and the waste water getting 100mL, in the beaker of 500mL, is then put in mechanically mixing reactor, and adds the magnesium chloride of 15mL and the ammonium hydrogen phosphate of 15mL wherein; By the MgNH that reaction generates 4pO 46H 2o crystallization, then adds 0.8g composite coagulant polymeric aluminium chloride and 0.6g polyacrylamide, makes the precipitating ion in the aqueous solution form floc sedimentation and precipitate; By its standing 10min, add 0.1g modified alta-mud, the vitriol oil of 8mL, adjust pH to be 7, absorption 30min; The concentration finally detecting nitrogen in waste water is 0.05mg/L, and clearance reaches more than 99%, meets discharging standards.
Example 3
From certain river, get some waste water, detecting phosphorous concentration in water outlet is 100mg/L, and the waste water getting 100mL, in the beaker of 500mL, is then put in mechanically mixing reactor, and adds the magnesium chloride of 15mL and the ammonium hydrogen phosphate of 15mL wherein; By the MgNH that reaction generates 4pO 46H 2o crystallization, then adds 0.8g composite coagulant polymeric aluminium chloride and 0.6g polyacrylamide, makes the precipitating ion in the aqueous solution form floc sedimentation and precipitate; By its standing 10min, add 0.1g modified alta-mud, the vitriol oil of 8mL, adjust pH to be 8, absorption 30min; The concentration finally detecting nitrogen in waste water is 0.07mg/L, and clearance reaches more than 99%, meets discharging standards.

Claims (2)

1. the restorative procedure of phosphorus containg substances in slowly-releasing water body, is characterized in that:
(1) from certain river, get some waste water, detecting phosphorous concentration in water outlet is 100mg/L, and the waste water getting 100mL, in the beaker of 500mL, is then put in mechanically mixing reactor, and adds the magnesium chloride of 15mL and the ammonium hydrogen phosphate of 15mL wherein;
(2) by the MgNH of reaction generation 4pO 46H 2o crystallization, then adds 0.8g composite coagulant polymeric aluminium chloride and 0.6g polyacrylamide, makes the precipitating ion in the aqueous solution form floc sedimentation and precipitate;
(3) by its standing 10min, add 0.1g modified alta-mud, the vitriol oil of 8mL, tune pH is 6-8, absorption 30min;
(4) concentration of Phosphorus From Wastewater is finally detected.
2. a kind of method of phosphorus containg substances in slowly-releasing water body according to claim 1, it is characterized in that: described modified alta-mud stirs 1-2h in the temperature water of tensio-active agent halogenated phosphates and certain proportioning, gained suspension adds liquor alumini chloridi and sodium hydroxide successively, is washed by product, filters, dries, grinds and obtain.
CN201410729428.XA 2014-12-04 2014-12-04 Method for restoring phosphatic substances in slow-release water body Pending CN104556471A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109133310A (en) * 2018-07-26 2019-01-04 锐达工业科技（南京）有限公司 A kind of novel solid dephosphorization agent and preparation method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001355A (en) * 2000-06-26 2002-01-08 National Institute Of Advanced Industrial & Technology Method of treating muddy water containing bentonite, and treating agent
CN1569660A (en) * 2004-04-28 2005-01-26 浙江大学 Method for preparing waste water processing materials of organic-inorganic composite bentonite
CN1850591A (en) * 2006-05-24 2006-10-25 湖南大学 Method for recovering nitrogen and phosphorus from sewage
CN101298324A (en) * 2008-04-11 2008-11-05 浙江大学 Apparatus for reclaiming sewerage nitrogen and phosphor by ammoniomagnesium phosphate crystal method and method thereof
CN102690000A (en) * 2012-05-11 2012-09-26 湖北富邦科技股份有限公司 Method for recovering phosphorus in phosphorus chemical wastewater by using struvite production technology
CN103588361A (en) * 2013-11-22 2014-02-19 苏州科特环保设备有限公司 Method for removing total phosphorus in waste water through chemical/biological reaction synergistic effect
CN103641283A (en) * 2013-11-26 2014-03-19 华南理工大学 Method of economically recycling phosphor from excess sludge
CN103708596A (en) * 2014-01-07 2014-04-09 中南民族大学 Method for enhanced removal and recovery of nitrogen and phosphorus in traditional white spirit waste water treatment process
CN104071887A (en) * 2014-07-14 2014-10-01 南京大学 Compound oxidant for advanced treatment of electroplate phosphorate wastewater and wastewater treatment method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002001355A (en) * 2000-06-26 2002-01-08 National Institute Of Advanced Industrial & Technology Method of treating muddy water containing bentonite, and treating agent
CN1569660A (en) * 2004-04-28 2005-01-26 浙江大学 Method for preparing waste water processing materials of organic-inorganic composite bentonite
CN1850591A (en) * 2006-05-24 2006-10-25 湖南大学 Method for recovering nitrogen and phosphorus from sewage
CN101298324A (en) * 2008-04-11 2008-11-05 浙江大学 Apparatus for reclaiming sewerage nitrogen and phosphor by ammoniomagnesium phosphate crystal method and method thereof
CN102690000A (en) * 2012-05-11 2012-09-26 湖北富邦科技股份有限公司 Method for recovering phosphorus in phosphorus chemical wastewater by using struvite production technology
CN103588361A (en) * 2013-11-22 2014-02-19 苏州科特环保设备有限公司 Method for removing total phosphorus in waste water through chemical/biological reaction synergistic effect
CN103641283A (en) * 2013-11-26 2014-03-19 华南理工大学 Method of economically recycling phosphor from excess sludge
CN103708596A (en) * 2014-01-07 2014-04-09 中南民族大学 Method for enhanced removal and recovery of nitrogen and phosphorus in traditional white spirit waste water treatment process
CN104071887A (en) * 2014-07-14 2014-10-01 南京大学 Compound oxidant for advanced treatment of electroplate phosphorate wastewater and wastewater treatment method

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张亚雷等: "鸟粪石-絮凝强化工艺处理鸡粪发酵废水", 《同济大学学报(自然科学版)》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109133310A (en) * 2018-07-26 2019-01-04 锐达工业科技（南京）有限公司 A kind of novel solid dephosphorization agent and preparation method thereof

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Application publication date: 20150429