【正文】 —中心管內(nèi)流速，m/s。（4） 沉淀部分有效段面積式中：K2—水流量總變化系數(shù)，取值1； ν—污水在沉淀池中流速，m/s。（7） 沉淀部分有效容積 式中：C1—進(jìn)水懸浮物濃度，t/m3，104t/m3； C2—出水懸浮物濃度，t/m3；取值7105t/m3； T—兩次污泥清除相隔時(shí)間，d，取值2d； γ—污泥密度，t/m3，取值1； P0—污泥含水率，%，取值98。（9） 沉淀池總高度式中：h1—超高，m，； h4—緩沖層高，m。加氯量：選用MJL—Ⅰ型加氯機(jī)，該型號(hào)加氯機(jī)規(guī)格及性能：（1）加氯量：~；（2）使用水壓力：~；（3）外形尺寸（長(zhǎng)高）：180mm305mm；（4）重量：7kg。沉淀池進(jìn)水懸浮物濃度：C1=；沉淀池出水懸浮物濃度：C2=。（3）總污泥量選用50XG—C—230型固液泵兩臺(tái)，其中一臺(tái)備用。UASB反應(yīng)器產(chǎn)生污泥：Q1=，含水率P1=98%；沉淀池產(chǎn)生污泥：Q2=210m3/d，含水率P2=98%；停留時(shí)間：T=24h；濃縮池個(gè)數(shù)n=2。d）。設(shè)池底坡度為i=，則池底坡降故池底可貯泥容積式中：R—濃縮池半徑，m。（1）總污泥流量（2）脫水后污泥量選用一臺(tái)DYL—2000型帶式壓濾機(jī)。（1） 沿程管道水損 （式31）式中：i—水力坡度； l—管道長(zhǎng)度，m。（2）彎管和閥門等的局部水頭損失 （式33）式中：—局部阻力系數(shù)； ν—流速，m/s； g—重力加速度。表231 沿程水損表管渠構(gòu)筑物名稱管徑DNmm管長(zhǎng)m管道水損m局部水損m合計(jì)m集水池—粗格柵5002管渠構(gòu)筑物名稱管徑DNmm管長(zhǎng)m管道水損m局部水損m合計(jì)m細(xì)格柵—調(diào)節(jié)池50010調(diào)節(jié)池—UASB反應(yīng)器50014UASB反應(yīng)器—生物接觸氧化池50014生物接觸氧化池—沉淀池50030沉淀池—消毒池50012消毒間—排水口5000（1）各構(gòu)筑物自身水損取值如下表：232 各構(gòu)筑物自身水損構(gòu)筑物構(gòu)筑物自身水損（m）構(gòu)筑物構(gòu)筑物自身水損（m）細(xì)格柵提升泵房粗格柵調(diào)節(jié)池UASB反應(yīng)器生物接觸氧化池沉淀池消毒間（2）根據(jù)表231和表232確定各構(gòu)筑物高程如下表：表233 廢水處理站各構(gòu)筑物高程編號(hào)管渠及構(gòu)筑物名稱水面上游標(biāo)高（m）水面下游標(biāo)高（m）構(gòu)筑物水面標(biāo)高（m）超高(m)池底標(biāo)高（m）池頂標(biāo)高(m)1集水池3132粗格柵13提升泵4細(xì)格柵5調(diào)節(jié)池16UASB反應(yīng)器編號(hào)管渠及構(gòu)筑物名稱水面上游標(biāo)高（m）水面下游標(biāo)高（m）構(gòu)筑物水面標(biāo)高（m）超高(m)池底標(biāo)高（m）池頂標(biāo)高(m)7生物接觸氧化池8沉淀池9消毒池附錄附錄一 英文翻譯英文原文Treatment of brewery wastewater using anaerobic sequencing batch reactor (ASBR)Shao Xiangwen *, Peng Dangcong, Teng Zhaohua, Ju XinghuaSchool of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaAbstractBrewery wastewater was treated in a pilotscale anaerobic sequencing batch reactor (ASBR) in which a floating cover was time experiments showed that the reactor worked stably and effectively for COD removal and gas production. When the organic loading rate was controlled between , and hydraulic retention time one day, COD removal efficiency could reach more than 90%. Sludge granulation was achieved in the reactor in approximately 60 days, which is much less than the granulation time ever reported. In addition, high specific methanogenic activity (SMA) for formate was observed. The study suggests that the ASBR technology is a potential alternative for brewery wastewater treatment.Keywords: Brewery wastewater。 Granular sludge。 Formate1. IntroductionIn China, there are more than 100 big breweries in which a great volume of wastewater is produced. For each cubic meter of beer produced, the water consumed in general is 10~20m3, of which more than 90% will be discharged into sewer system. Moreover, there exists a great amount of beer losses (~%) in production line, which is also entering wastewater collecting system finally. Because of the high biodegradability of brewery wastewater (BOD5/COD), biological treatment is widely used. Traditionally, wastewaters from different processes are mixed together and treated with aerobic processes, such as conventional activated sludge, oxidation ditch, sequencing batch reactor and biofilter. However, brewery wastewater is characterized by high strength soluble organic pollutants and suspended solids (SS). Aerobic treatment requires an intensive amount of energy for aeration. In addition, a large amount of wasted sludge is produced, which costs large capital to disposal. Therefore, Brewery panies are reluctant to employ wastewater treatment facilities. Source separation is an alternative for sustainable solution. For the part of wastewaters discharged from boiling and fermentation processes in which high strength organic carbon is contained, anaerobic treatment is believed to be the best choice. High rate anaerobic reactors, such as upflow anaerobic blanket reactor (UASB), anaerobic granular bed baffled reactor (GRABBR) and anaerobic fluidized bed (AFB), have been reported to treat brewery wastewater and a satisfactory COD reduction obtained.Anaerobic sequencing batch reactor (ASBR) is a newly developed technology and has been extensively studied due to its advantages: (1) no short circuit, as in the case of fixedbed continuous systems。 (3) no primary and secondary settles。 1 ℃.. Seed sludgeThe seed sludge was taken from a UASB reactor in Xi’an Hans Breweryhouse. The sludge is typically flocculent with MLSS of , MLVSS of . Brewery wastewaterThe wastewater discharged from the boiling and fermentation process is approximately 5000 mg COD/L, which is posed of concentrated water from the boiling vessel and washing water. The concentrated wastewater was obtained from Xi’an Hansi Brewaryhouse with a chemical oxygen demand (COD) of 22500~32500 mg/L, TKN of 320~450mg/L, TP of 144~216mg/L, volatile suspended solids (VSS) of 1400~4800mg/L, and pH of ~, and was diluted to required strength with potable water as that discharged before feeding. NaHCO3 was added to adjust the influent pH in the range of 6~7.. ASBR operationThe ASBR was started with an organic loading rate (OLR) of , then the organic loading rate increased step by step to guarantee a low COD effluent. The batch cycle was controlled in 8 h during which 1 h was used for feeding, h for reacting, for settling and for decanting. Fifteen liters of supernatant water was decanted per cycle, which provided a hydraulic retention time (HRT) of 24h. When COD in the effluent was kept in stable, samples were obtained to evaluate the reactor performance.. Analytical methodsCOD, pH, suspended solids (SS), alkalinity, mixed liquor suspended solids (MLSS) and mixed liquor volatile suspended solids (MLVSS) were analyzed according to the standard methods. The volatile fatty acids (VFA) were mea