Rapid efficient ammonia nitrogen remover and preparation method and application thereof

A technology of removing agent and ammonia nitrogen, which is applied in the field of water treatment, can solve the problems of low denitrification efficiency, high treatment cost, and long treatment time, and achieve the effects of stable treatment effect, simple preparation process, and rapid and complete reaction

Inactive Publication Date: 2017-07-18
浙江一清环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past 20 years, a lot of research has been carried out on the treatment of ammonia nitrogen wastewater at home and abroad. The scope of the research involves various treatment processes such as biological methods and physical and chemical methods. For example, biological methods include nitrification and algae cultivation, but this method can only treat low Concentration ammonia nitrogen wastewater, and the treatment time is long, it is difficult to control in practical applications, for high concentration ammonia nitrogen will inhibit the growth of microorganisms, and the denitrification efficiency is not high; physical methods include reverse osmosis, distillation, etc., there are high treatment costs, in large It cannot be used in production; chemical methods include ion exchange method, ammonia stripping, chemical precipitation method, breakpoint chlorination, electrochemical treatment, catalytic cracking, etc. After these methods are treated once, the ammonia nitrogen in the wastewater cannot be discharged up to the standard, and subsequent treatment is required
The denitrification efficiency of stripping method is high, but the ammonia nitrogen is not fundamentally removed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A fast and efficient ammonia nitrogen remover, the ammonia nitrogen remover is composed of the following components in mass percentage: 21% sodium hypochlorite, 15% magnesium sulfate, 14% sodium dihydrogen phosphate, 15% aluminum sulfate, 10% bentonite, 6% zeolite, 8% calcium hydroxide, 6% citric acid, 5% sodium bicarbonate; mix and stir all components according to the above ratio to obtain the ammonia nitrogen remover.

[0028] Add 1500mg / l ammonia nitrogen remover to coking ammonia nitrogen-containing wastewater containing 550mg / l of ammonia nitrogen. After 10 minutes of reaction, the residual ammonia nitrogen content in the effluent wastewater is 4.5mg / l, which meets the first-level standard of national comprehensive sewage discharge. The removal rate is 99.18%.

Embodiment 2

[0030] A fast and efficient ammonia nitrogen remover, the ammonia nitrogen remover is composed of the following components in mass percentage: 20% trichloroisocyanuric acid, 9% potassium ferrate, 14% magnesium hydroxide, 12% disodium hydrogen phosphate %, polyacrylamide 1%, activated carbon 8%, activated alumina 11%, calcium chloride 10%, citric acid 8%, sodium bicarbonate 7%; according to the above ratio, mix and stir the components to obtain ammonia nitrogen removal agent.

[0031] Add 700mg / l ammonia nitrogen remover to food waste water containing 200mg / l ammonia nitrogen, and after 5 minutes of reaction (how long does it take? Please add) the residual ammonia nitrogen content in the effluent waste water is 5.8mg / l, reaching the national sewage level According to the comprehensive first-level discharge standard, the removal rate of ammonia nitrogen in wastewater is 97.1%.

Embodiment 3

[0033] A fast and efficient ammonia nitrogen remover, the ammonia nitrogen remover is composed of the following components in mass percentage: 13% sodium dichloroisocyanurate, 13% potassium ferrate, 16% polyaluminum sulfate, 10% ferric chloride %, polyacrylamide 1%, bentonite 14%, ferromanganese filter material 9%, calcium oxide 11%, tartaric acid 7%, sodium bicarbonate 6%; mix and stir the components according to the above ratio to get the ammonia nitrogen remover .

[0034] Add 2600mg / l ammonia nitrogen remover to the fertilizer wastewater containing ammonia nitrogen 1050mg / l, and react for 10 minutes (how long will it take? Please add) the residual ammonia nitrogen content in the effluent wastewater is 12.6mg / l, reaching the national sewage level According to the first-level discharge standard, the removal rate of ammonia nitrogen in wastewater is 98.8%.

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PUM

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Abstract

The invention relates to a rapid efficient ammonia nitrogen remover and a preparation method and application thereof. The rapid efficient ammonia nitrogen remover is prepared from the following components in percentage by mass: 5-35% of an oxidant, 5-50% of an inorganic coagulant, 2-40% of an adsorption material, 1-15% of a calcium salt and 1-20% of an effervescent disintegrant. The rapid efficient ammonia nitrogen remover can be dissolved in water, and is free of a residue, free of secondary pollution, the operation is simple and convenient, the time required for purifying the water is short, ammonia nitrogen can be quickly and efficiently removed, and the rapid efficient ammonia nitrogen remover has a certain removal effect on COD, total phosphorus and suspended matters at the same time. The rapid efficient ammonia nitrogen remover integrates oxidation, breakpoint chlorination, coagulating sedimentation, adsorption, pH value control and rapid collapse body dissolution, and the ammonia nitrogen can be quickly and efficiently removed.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a fast and efficient ammonia nitrogen remover and its preparation method and application. Background technique [0002] High-concentration ammonia nitrogen wastewater has a wide range of sources and a large amount of discharge, such as chemical fertilizers, coking, petrochemicals, pharmaceuticals, food, landfills, etc., all produce a large amount of high-concentration ammonia nitrogen wastewater. The discharge of a large amount of ammonia nitrogen wastewater into the water body will not only cause eutrophication of the water body, cause the water body to be black and smelly, but also increase the difficulty and cost of water supply treatment, and even cause poisonous effects on people and organisms. Pollution control, energy saving and emission reduction have become important issues in the implementation of sustainable development strategies in my country. Amm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/72C02F1/52C02F1/28C02F101/16C02F103/00C02F103/02C02F103/32C02F103/34
CPCC02F1/00C02F1/5236C02F1/5254C02F1/72C02F1/722C02F1/76C02F1/766C02F2101/16C02F2103/007C02F2103/026C02F2103/32C02F2103/34C02F2303/04C02F2303/18C02F2303/20
Inventor 吴昊张天瑞姚伟英张海平白赞章陈建军
Owner 浙江一清环保工程有限公司
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