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摘要
本設(shè)計(jì)為某啤酒廢水處理設(shè)計(jì)。設(shè)計(jì)程度為初步設(shè)計(jì)。啤酒廢水水質(zhì)的主要特點(diǎn)是含有大量的有機(jī)物，屬高濃度有機(jī)廢水，故其生化需氧量也較大。該啤酒廢水處理廠的處理水量為3000m3/d,不考慮遠(yuǎn)期發(fā)展。原污水中各項(xiàng)指標(biāo)為：BOD濃度為700mg/L,COD濃度為1350mg/L，SS濃度為400mg/L，TN為30 mg/ L，TP為3 mg/ L。因該廢水BOD值較大,不經(jīng)處理會(huì)對(duì)環(huán)境造成巨大污染，要求處理后達(dá)到以下要求,即：BOD≤20mg/ L，COD≤100mg/ L，SS≤60mg/ L, TN≤10mg/ L，TP≤0.5mg/ L。
經(jīng)分析知該處理水質(zhì)屬易生物降解又無(wú)明顯毒性的廢水，可采用兩級(jí)生物處理以使出水達(dá)標(biāo)。一級(jí)處理主要采用物理法，用來(lái)去除污水中的懸浮物質(zhì)和無(wú)機(jī)物。二級(jí)處理主要采用生物法,包括厭氧生物處理法中的UASB法和好氧生物處理法中的SBR法，可有效去除污水中的BOD、COD。本設(shè)計(jì)工藝流程為：
啤酒廢水 → 格柵 → 污水提升泵房 → 調(diào)節(jié)沉淀池 → UASB反應(yīng)器
→ SBR池 →處理水
整個(gè)工藝具有總投資少，處理效果好，工藝簡(jiǎn)單，占地面積省，運(yùn)行穩(wěn)定，能耗少的優(yōu)點(diǎn)。
關(guān)鍵詞：啤酒廢水處理，濃度有機(jī)廢水，UASB法，SBR法
Abstract
This design is one beer waste water treatment. The degree of the design is in a preliminary phase. The main distinguishing feature of the beer waste water is that it contains the massive organic matters, so it belongs to the high concentration organic waste water, therefore its biochemical oxygen demand is also high.
The water which needs to treatment in the beer waste water treatment plant is 3000, regardless of the specified future development. Various target in the raw waste water is: the concentration of BOD is 700mg/L, the concentration of COD is 1350mg/L, the concentration of SS is400mg/L,the concentration of TN is 30mg/L, the concentration of TP is 3mg/L .For the beer waste water's BOD is high, it could pollute the enviroment if drained before treatment, so it request the beer waste water which drained must be strictly treated to the standard, which is as following: BOD≤30mg/ L, COD≤100mg/ L, SS≤70mg/ L, the concentration of TN is 10mg/L, the concentration of TP is 0.5mg/L..
After the analysis, the quality of this processing water belongs to the waste water that easy biology degrade and not have the obvious poison, could use two levels of biological treatments to cause the water drained meet the designated standard. First level of processing mainly uses the physical methods, which removes the suspended matter and the inorganic substance in the sewage.Second levels of processing mainly uses the biology methods, consists of UASB of demand oxygen biology methods and SBR of anaerobic oxygen biology methods, which could remove BOD, CODin the waste water. The technological process of this design is:
Beer waste water → Screens → The sewage lift pump house → Regulates precipitating tank → Reaction tank of UASB → Tank of SBR →Treatment water
The entire technological process have the characteristics of lower investment, good treatment effect, easy technology process，using small area, running steady, and consuming lower energy.
Keyword: Beer waste water treatment ， High concentration of organic waste water，
UASB(Upflow Anaerobic Sludge Blanket)process ， SBR (Sequencing Batch Reactor)processs