Ammonia nitrogen recovery system for hair product wastewater and operating method of system

A technology for ammonia nitrogen recovery and hair products, which is applied in chemical instruments and methods, water/sewage treatment, heating water/sewage treatment, etc., can solve the problems of failure to realize high-concentration ammonia nitrogen recovery and reuse, waste of resources, etc. Small size, stable operation, simple operation and management

Inactive Publication Date: 2016-08-17
HENAN NORMAL UNIV
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Problems solved by technology

However, this process did not realize the recovery and reuse of high-concentration ammonia nitrogen, which caused a waste of resources to a certain extent.

Method used

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  • Ammonia nitrogen recovery system for hair product wastewater and operating method of system

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Embodiment

[0019] An ammonia nitrogen recovery system for hair product wastewater, including a high ammonia nitrogen wastewater tank 1, a sewage lift pump 2, a heating reaction tank 3, a reaction sedimentation tank 4, a mixed sewage tank 5, a sludge pump 6, and a plate and frame filter press 7 , transport truck 8, sewage return pump 9, electric heater 10, electric mixer 11, MgCl 2 Dosing metering pump 12, MgCl 2 Storage tank 13, Na 2 HPO 4 Dosing metering pump 14 and Na 2 HPO 4 The medicine storage tank 15, wherein the high-ammonia-nitrogen wastewater pool 1 communicates with the heating reaction pool 3 through the sludge lifting pump 2, and the heating reaction pool 3 is fixed in the reaction sedimentation pool 4, and the heating reaction pool 3 is a cylindrical cavity with an open upper end , the upper edge of the heating reaction tank 3 is flush with the upper edge of the reaction sedimentation tank 4, the lower edge of the heating reaction tank 3 is 2 meters away from the upper e...

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Abstract

The invention discloses an ammonia nitrogen recovery system for hair product wastewater and an operating method thereof, and belongs to the technical field of high-concentration ammonia nitrogen wastewater treatment and ammonia nitrogen recovery. The present invention integrates the heating reaction tank and the reaction sedimentation tank into one, by adding the precipitating agent MgCl to the heating reaction tank 2 solution and Na 2 HPO 4 solution to complete the chemical reaction, the reaction sedimentation tank is designed as an overflow weir, and the reacted water in the heated reaction tank enters the reaction sedimentation tank through overflow, and the generated MgNH 4 PO 4 ·6H 2 O is precipitated in the reaction sedimentation tank, and the clarified sewage overflows from the surrounding of the reaction sedimentation tank. The sediment in the sludge hopper of the reaction sedimentation tank is treated by a plate and frame filter press and transported outside for further stacking treatment as fertilizer. The invention has compact equipment, small occupied area, easy realization of automatic control, simple operation management, stable operation, better removal of ammonia nitrogen and realization of resource recovery and reuse.

Description

technical field [0001] The invention belongs to the technical field of high-concentration ammonia nitrogen wastewater treatment and ammonia nitrogen recovery, and specifically relates to an ammonia nitrogen recovery system for hair product wastewater and an operating method thereof. Background technique [0002] In the production process of hair products, multiple processes such as pickling, neutralization, rinsing, and dyeing and finishing of hair raw materials are required. The neutralized and rinsed wastewater contains high concentration of ammonia nitrogen, therefore, it is of great significance to provide an effective ammonia nitrogen recovery system and method. [0003] At present, the traditional biological denitrification method, ammonia stripping method, ion exchange method, breakpoint chlorination method and magnesium ammonium phosphate (MAP) chemical precipitation method are mainly used for the treatment of high-concentration ammonia nitrogen wastewater. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/02C02F11/12
CPCC02F1/5254C02F1/02C02F11/122
Inventor 申战辉张淑展史嘉璐
Owner HENAN NORMAL UNIV
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