Water treatment filler capable of removing ammonia nitrogen and total nitrogen in wastewater synchronously

Abstract

The invention discloses water treatment filler capable of removing ammonia nitrogen and total nitrogen in wastewater synchronously. The filler is of a cylindrical embedding-sleeving structure as a whole and is divided into an outer sleeving layer and an inner embedding layer. The outer sleeving layer is formed by foaming and blending outer sleeving layer materials, and the outer sleeving layer materials comprise low-density polyethylene (LDPE), basalt fiber and nano calcium carbonate powder. The inner embedding layer is blended by inner embedding layer materials, and the inner embedding layermaterials comprise polybuthylenesuccinate (PBS) and modified bamboo powder. By the adoption of the embedding-sleeving structure, the outer sleeving layer is provided with a pore structure which can allow microorganisms to gather together and a trichoid structure which extends outwards, under the aerobiotic and high-hydraulic-shearing condition, a surface turbulence environment is formed, and the inner embedding layer is in an alternating oxygen-enriched-microaerobic-anaerobic environment. The water treatment filler can synchronously remove ammonia nitrogen and total nitrogen, the running costof the filler is low, the volume load of unit nitrogen of wastewater treatment facilities can be increased in situ, and the selection contradiction of technological parameters of synchronously removing nitrogen and phosphorous in the running process of an actual technology can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and specifically relates to a water treatment filler capable of synchronously removing ammonia nitrogen and total nitrogen from wastewater. Background technique [0002] With the rapid economic development, the environmental pollution caused by industrial and agricultural wastewater is becoming more and more serious, and it is imperative to realize the complete standard treatment and discharge of wastewater. However, due to the differences in the characteristics of different types of functional flora during the treatment process, it is necessary to provide "space" or "time" distinctions to meet the above-mentioned differences in the relevant operation process. In terms of "spatial" differences, typical such as A / O, A 2 O process, by separately setting aerobic pool, anoxic pool, anaerobic pool, etc., to realize the independent growth of nitrifying bacteria (ammonia nitrogen removal) and d...

AI Technical Summary

Problems solved by technology

However, the existing fillers or functions are relatively single. Basically, materials such as polyethylene are used to make aerobic treatment fillers to realize the function of nitrification (ammonia nitrogen removal); or the mechanical strength and cost control are not ideal. For example, natural organic matter ( Such as starch, etc.) and degradable polyesters (polylactic acid, polycaprolactone, etc.) to achieve denitrification function (removal of total nitrogen)

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