Ammonia-nitrogen wastewater treatment system and process based on PTFE (polytetrafluoroethylene) deamination membrane component

Abstract

The invention discloses an ammonia-nitrogen wastewater treatment system and process based on a PTFE (polytetrafluoroethylene) deamination membrane component. The system comprises a microfiltration system, an agent adding box, a membrane deamination system device, an ammonium recycling system device and a heat exchange component. The process includes: removing suspended matter in ammonia-nitrogen wastewater through the microfiltration system; utilizing a sodium hydroxide solution to adjust pH value of the wastewater; utilizing a sealed heating circulating water tank to heat the wastewater to separate ammonium; utilizing the PTFE deamination membrane component to deaminate the wastewater, and discharging the wastewater; converting collected ammonium into an ammonium sulfate solution by the ammonium recycling system device to realize recycling conversion of ammonia-nitrogen. By using the system and the process, capability of treating industrial wastewater and domestic wastewater is improved greatly; the system and the process have efficient deamination purification effect on high-concentration ammonia-nitrogen wastewater, and has extremely high recycling conversion rate to ammonia-nitrogen waste, thereby being capable of promoting comprehensive development of petroleum chemical industry of China and of great significance in treating water pollution and environment pollution caused by wastewater discharging in China.

Description

technical field [0001] The invention belongs to the technical field of ammonia nitrogen wastewater treatment, and in particular relates to an ammonia nitrogen wastewater treatment system based on a PTFE deamination membrane module and a process thereof. Background technique [0002] At present, with the rapid development and growth of my country's chemical fertilizer, petrochemical and other industries, the high ammonia nitrogen wastewater produced is gradually increasing, and the concentration can reach 1000mg / L; in addition, the increase of domestic waste also makes the leachate wastewater ammonia nitrogen The content is higher, up to 2000mg / L. At present, due to the relatively backward treatment technology of ammonia nitrogen wastewater, the cost of treating ammonia nitrogen wastewater is huge, which seriously restricts the development of various industries such as petrochemical industry in China. [0003] The general formation of ammonia nitrogen wastewater is caused by ...

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Problems solved by technology

[0014] Aiming at the current industry common problems such as high cost of ammonia nitrogen wastewater treatment and low conversion rate of ammonia nitrogen resources, the present invention provides an ammonia nitrogen wastewater treatment system and its process based on PTFE deamination membrane modules to achieve efficient treatment of ammonia nitrogen wastewater and high recovery of waste materials rate, to achieve the purpose of green production and waste utilization

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