Loofah sponge filler used in slightly polluted source water biological pretreatment and pretreatment method

Abstract

The invention provides loofah sponge filler used in slightly polluted source water biological pretreatment and a pretreatment method, belonging to the technical field of water treatment. The pretreatment method comprises the following steps: (1) the peel and seeds of each mature loofah are removed, the thiner parts on both ends of each loofah are cut away, the residual part is cut to a columnar loofah sponge of which thickness is about 2cm, the loofah sponges are fastened and connected serially through a high strength glass fiber yarn to be fixed in a reactor and used as filler; and (2) seed sludge is pumped in the reactor to fully contact with the loofah sponge filler, the microbes on the loofah sponges are cultured in the modes of continuous charging, continuous discharging and continuous aeration, after the acclimation, the slightly polluted source water is pumped by a peristaltic pump to another reactor, an aerating device at the bottom of the reactor performs continuous aeration, and the microbes on the soft loofah sponge filler are utilized to oxidize and remove the organic matter and ammonia-nitrogen in the water. The loofah sponge filler of the invention has the advantages that the film formation speed is high, the film formation amount is large, the biofilm is closely combined with the carrier and the filler is not required to be washed repeatedly.

Description

Technical field: [0001] The invention belongs to the technical field of water treatment, and in particular relates to a loofah filler used for biological pretreatment of slightly polluted water source water and a pretreatment method. Background technique: [0002] The rapid development of industrialization in my country, the continuous expansion of urbanization scale and the lag of sewage and wastewater treatment have led to the gradual deterioration of the water quality of source water, and the degree of pollution of source water has become more and more serious, especially the increase of dissolved organic matter, NH 4 + The problem of excessively high concentration of -N is particularly prominent. The increase of dissolved organic matter will produce a large number of teratogenic, carcinogenic and mutagenic disinfection by-products in the subsequent chlorine disinfection process. The presence of ammonia nitrogen will cause eutrophication of water bodies. However, the e...

AI Technical Summary

Problems solved by technology

[0004] At present, the fillers commonly used in slightly polluted source water are mainly spherical and other shapes of hard fillers, such as ceramsite sintered from clay, polyvinyl chloride plastic, polypropylene plastic, epoxy glass steel, etc. Their common disadvantage is that they hang Insufficient membrane speed, film hanging amount and membrane tightness, frequent clogging during operation, frequent backwashing, high energy waste

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