工藝特點 Technics Characteristic
畜禽養(yǎng)殖廢水是農(nóng)村面源污染的一大來源，大量排放的畜禽糞更污水日積月累，在各大城市周邊地帶形成了龐大的污染源，其中養(yǎng)豬廢水是污染排放主體。針對豬場沼液富合氮、磷、有機物以及營養(yǎng)比例嚴重失調(diào)、碳氮比極低的水質(zhì)特點采用高效的生物反應(yīng)器處理技術(shù)是實現(xiàn)原位污染控制的根本途徑。
污水處理設(shè)備通過一個運行周期內(nèi)缺氧環(huán)境和好氧環(huán)境的多次交替，有效實現(xiàn)亞硝態(tài)氮的積累，能實現(xiàn)穩(wěn)定的短程硝化反硝化脫氮，從而在硝化階段節(jié)省40%的氧氣消耗，在反硝化階段節(jié)省25%的有機碳源消耗，污泥產(chǎn)量大幅減少，反硝化反應(yīng)速率大幅提高，CO2排放量減少20%/同時，間歇曝氣的運行模式下，缺氧反硝化過程中產(chǎn)生的堿度能及時補充好氧硝化過程中消耗的堿度，節(jié)省調(diào)堿藥劑消耗，
Livestock and poultry wastewater is a majpor source of non-pont pollution in rural areas, a large amount of livestock and poultryexcrement sewage cumulative, in the surrounding areas of major cities formed a huge source of pollution. Pig wastewater is themain body of pollution discharge. In view of the pig farm biogas liquid rich in ntrogen; phosphorus, organic matter and nutrientratio serious mbalance, carbon to nitrogen ratio is very low water qually charactenistics. High-efic ent bioreactor treatmenttechnology is the fundamentalway to achieve in-situ pllution control.
Batch batch boreactor with intermitent. aeration can effectively realize the accumulation of ntrte nitrogen and realize stabledenitrification and denitrification by alternating the anoxic environment and aerobic envronment in a single operating cycle,Thus, 40% oxygen consumption was saved in nitrification stage, 25% organic carbon consumption was saved in denitrificationstage, sludge production was greatly reduced, and denitr fcation reaction rale was greatly increased. At the same time, underthe operation mode of intermttent aeration, the akalinity proouced in anoxic dentrfication process can replenish the alkalinityconsumed in aerobic nitrification process and save the consumption of alkali regulating agents.
