A kind of ammonia nitrogen wastewater resource treatment system and its treatment method

Abstract

The invention discloses an ammonia-nitrogen wastewater resourceful treatment system and a treatment method of the ammonia-nitrogen wastewater resourceful treatment system. The ammonia-nitrogen wastewater resourceful treatment system comprises a water collection tank, a buffering tank, an adjusting kettle, a first buffering tank, an MVR evaporation system, an adjusting tank, an adsorption system, a second buffering tank and an ammonia-nitrogen removing system, which are connected in sequence, wherein each of the water collection tank, the buffering tank, the adjusting kettle, the first buffering tank, the MVR evaporation system, the adjusting tank, the adsorption system, the second buffering tank and the ammonia-nitrogen removing system is provided with an inlet and an outlet. The ammonia-nitrogen wastewater resourceful treatment system has the advantages of concise pre-treatment device, small occupied area, convenience for operation, sanitary working environment, good purification effect, no secondary pollution and small solid waste output, and can be used for efficiently recycling ammonia-nitrogen resources in wastewater in an ammonium salt form; output water of the system can be reused as reclaimed water.

Description

technical field [0001] The invention relates to the field of salty wastewater treatment, in particular to an ammonia nitrogen wastewater resource treatment system and a treatment method thereof. Background technique [0002] As an emerging industrial country, China produces a wide variety of industrial wastewater with a huge volume. The discharge of wastewater has seriously affected the watershed environment and the health of residents. Among them, the direct discharge of high-ammonia nitrogen wastewater will damage the local ecological environment. The eutrophication of the waters has caused the death of a large number of fish and shrimp, and wasted valuable ammonia nitrogen. Therefore, when treating this type of wastewater, not only the wastewater must be discharged up to the standard, but also the ammonia nitrogen resources must be recovered. [0003] At present, the treatment methods of ammonia nitrogen wastewater mainly include stripping method, steam stripping method, ...

AI Technical Summary

Problems solved by technology

This process can effectively reduce the probability of sticky tubes caused by long-term operation of the evaporator, but it has the following disadvantages: (1) The pretreatment process is long, and the pH must be adjusted frequently, which increases the operating intensity; (2) The pH of the iron-carbon micro-electrolysis process The value is constantly increasing, and a certain amount of aeration is required at the same time, so the loss of ammonia nitrogen in the ammonium salt-containing wastewater is caused, the total nitrogen content of the recovered ammonium salt is reduced, and the escape of ammonia gas will cause secondary pollution of the surrounding environment; (3 ) The waste water is subjected to iron-carbon micro-electrolysis and Fenton oxidation in turn after the pH value is adjusted by homogenizing the water quality. Since the COD of the waste water is large and the load of pretreatment is large, the output of iron sludge is large, and the consumption of iron-carbon and hydrogen peroxide is large. high cost

Images