Preparation method for water purifier capable of synchronously removing ammonia nitrogen and phosphorus in waste water

A water purifying agent and wastewater technology, which can be used in adsorption water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., and can solve problems such as low effect.

Inactive Publication Date: 2013-02-27
天津市鑫昌科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The patented product of the present invention is a new type of composite ferric chloride water treatment agent containing magnesium and calcium ions. The significant synergistic and complementary effect of ions in the iron salt water purifier achieves and realizes the purpose of simultaneously removing ammonia nitrogen, phosphorus and other harmful substances in wastewater. It is a green inorganic high-efficiency water treatment with better performance and no residual toxicity. agent

Method used

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  • Preparation method for water purifier capable of synchronously removing ammonia nitrogen and phosphorus in waste water
  • Preparation method for water purifier capable of synchronously removing ammonia nitrogen and phosphorus in waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Get ferrous chloride content and be that 30%, hydrochloric acid content are that 1 ton of steel pickling waste liquor is squeezed into reactor.

[0031] (2) 50 kilograms of industrial ferrous chloride solids of 95% content are added, and solids are all dissolved under stirring.

[0032] (3) Adding 40 kilograms of magnesium oxide content under stirring is that the magnesite powder of 55% or more, 20 kilograms of calcium oxide content are the limestone powder of 55% and react with the hydrochloric acid in the steel material pickling waste liquor;

[0033] (4) After the mineral powder is completely dissolved and reacted, the reaction product is aerated and oxidized;

[0034] (5) After the oxidation reaction, the solution was aged for 12 hours to make the reaction more complete and then filtered. After testing, the ferric chloride content in the solution reached more than 38% as required by the content index and then cooled, filtered and packaged.

Embodiment 2

[0036] (1) Get ferrous chloride content and be that 30%, hydrochloric acid content are that 1 ton of steel pickling waste liquor is squeezed into reactor.

[0037] (2) 50 kilograms of industrial ferrous chloride solids of 95% content are added, and solids are all dissolved under stirring.

[0038] (3) Adding 30 kilograms of magnesium oxide content under stirring is that the magnesite powder of 55% or more, 30 kilograms of calcium oxide content are that the limestone powder of 55% reacts with the hydrochloric acid in the steel material pickling waste liquor;

[0039] (4) After the mineral powder is completely dissolved and reacted, the reaction product is aerated and oxidized;

[0040] (5) After the oxidation reaction, the solution is aged for 12 hours to make the reaction more complete and filtered to detect the ferric chloride content in the solution. If it needs to be concentrated, it can be concentrated by steam evaporation to make the ferric chloride content in the solutio...

Embodiment 3

[0044] (1) getting ferrous chloride content is 33%, and hydrochloric acid content is 1 ton of steel material pickling waste liquor that is 7% and squeezes into reactor.

[0045] (2) Add 20 kilograms of industrial ferrous chloride solids of 95% content, and make solids all dissolve under stirring.

[0046] (3) adding 30 kilograms of magnesia content under stirring is that the magnesia powder of 55% or more, 30 kilograms of calcium oxide content are the limestone powder of 55% and react with the hydrochloric acid in the steel material pickling waste liquor;

[0047] (4) After the mineral powder is completely dissolved and reacted, the reaction product is aerated and oxidized;

[0048] (5) After the oxidation reaction, the solution is aged for 12 hours to make the reaction more complete and filtered, and the solution can be concentrated by steam evaporation, so that the ferric chloride content in the solution reaches the content index requirement of 96% and then cooled, broken an...

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Abstract

The invention discloses a preparation method for water purifier capable of synchronously removing ammonia nitrogen and phosphorus in waste water, which belongs to the water treatment chemicals production technology in the field of environmental protection. The preparation method for the water purifier comprises the following steps of (1) placing mineral powder containing magnesium and calcium with given percentage amount into steel acid-washing waste liquid to have chemical reaction with hydrochloric acid in the waste liquid; (2) oxidizing reacted products, oxidizing ferrous ions to be ferric ions, and generating ferric chloride solution containing magnesium and calcium ions; and (3) aging and filtering the ferric chloride solution containing the magnesium and the calcium ions, evaporating and concentrating the solution when necessary, and packing the product after the product meets the index requirements. Products prepared by the preparation method can conform to the category II standard of water purifier ferric chloride of GB4482-2006, have a remarkably effect for synchronously removing the ammonia nitrogen and phosphorus for industrial sewage, agricultural breeding waste water and domestic waste water while having all performance characteristics of the ferric chloride, the resource-oriented comprehensive utilization of the steel acid-washing waste liquid can be realized, and a purpose for controlling waste through waste can be realized.

Description

technical field [0001] The invention belongs to the production technology of water treatment agents in the field of environmental protection, and relates to a method for preparing water purifiers capable of synchronously removing ammonia nitrogen and phosphorus in waste water, in particular to a method of using steel pickling waste liquid as raw material and magnesium-containing ore powder, The invention relates to a preparation method for producing a water purifying agent containing magnesium and calcium ions after reacting and oxidizing calcium ore powder. Background technique [0002] With the increasing development and utilization of resources by human beings, the continuous development of industry and agriculture, and the increasing population expansion, a large amount of domestic sewage, industrial wastewater, and agricultural breeding wastewater containing ammonia nitrogen and phosphorus nutrients are discharged into rivers and lakes, increasing the water quality. Nut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/52
Inventor 王柳洋王富鑫张秀媛刘洋刘丽
Owner 天津市鑫昌科技有限公司
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