生活污水处理设备在设计时要基于生活污水的特点
生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)(wu)水(shui)(shui)(shui)处(chu)(chu)理(li)(li)设(she)备(bei)在设(she)计(ji)时要基(ji)于生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)(wu)水(shui)(shui)(shui)的(de)(de)(de)特(te)(te)点(dian)(dian)
生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)(wu)水(shui)(shui)(shui)是居民日常(chang)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)中(zhong)(zhong)排(pai)出(chu)的(de)(de)(de)废水(shui)(shui)(shui),主(zhu)要来源于居住(zhu)建筑和(he)(he)公共(gong)建筑,如(ru)(ru)住(zhu)宅、机关、学(xue)校(xiao)、医院(yuan)、商店、公共(gong)场所及(ji)工业企业卫(wei)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)间(jian)等(deng)。生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)(wu)水(shui)(shui)(shui)所含的(de)(de)(de)污(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)主(zhu)要是有(you)机物(wu)(wu)(如(ru)(ru)蛋白质、碳水(shui)(shui)(shui)化(hua)合物(wu)(wu)、脂肪、尿素、氨氮(dan)等(deng))和(he)(he)大(da)量(liang)病(bing)原微生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(如(ru)(ru)寄生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)虫卵和(he)(he)肠(chang)道传染(ran)(ran)(ran)病(bing)毒等(deng)),如(ru)(ru)果(guo)随意(yi)排(pai)放,水(shui)(shui)(shui)中(zhong)(zhong)的(de)(de)(de)污(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)进(jin)(jin)入空气(qi)、土壤、水(shui)(shui)(shui)体(ti)等(deng)环境,会(hui)(hui)对(dui)我们的(de)(de)(de)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)产和(he)(he)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)造(zao)成(cheng)相(xiang)当(dang)不(bu)(bu)利的(de)(de)(de)影(ying)响。因此,生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)(wu)水(shui)(shui)(shui)都(dou)需要经过污(wu)(wu)(wu)水(shui)(shui)(shui)处(chu)(chu)理(li)(li)设(she)备(bei)的(de)(de)(de)处(chu)(chu)理(li)(li),污(wu)(wu)(wu)水(shui)(shui)(shui)中(zhong)(zhong)的(de)(de)(de)大(da)量(liang)污(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)都(dou)被(bei)清理(li)(li)了,这(zhei)样的(de)(de)(de)污(wu)(wu)(wu)水(shui)(shui)(shui)才能安全(quan)排(pai)放,不(bu)(bu)会(hui)(hui)对(dui)环境造(zao)成(cheng)污(wu)(wu)(wu)染(ran)(ran)(ran)。
基(ji)于生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)(wu)水(shui)(shui)(shui)的(de)(de)(de)特(te)(te)点(dian)(dian),生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)(wu)(wu)水(shui)(shui)(shui)处(chu)(chu)理(li)(li)设(she)备(bei)在设(she)计(ji)时必(bi)须遵以下原则(ze)(ze):
1、厌氧(yang)水(shui)(shui)(shui)解池采用(yong)上升流(liu)式厌氧(yang)污(wu)(wu)(wu)泥(ni)(ni)床反应(ying)(ying)(ying)器的(de)(de)(de)形式,设(she)计(ji)水(shui)(shui)(shui)力(li)停(ting)留时间(jian)为2~4小时。厌氧(yang)池下部(bu)为污(wu)(wu)(wu)泥(ni)(ni)床区,污(wu)(wu)(wu)泥(ni)(ni)床厚度通常(chang)控制(zhi)在1~1.2M之(zhi)间(jian),进(jin)(jin)水(shui)(shui)(shui)系统可采用(yong)脉冲进(jin)(jin)水(shui)(shui)(shui)中(zhong)(zhong)阻力(li)布水(shui)(shui)(shui)系统,底部(bu)设(she)布水(shui)(shui)(shui)沟,保留污(wu)(wu)(wu)
2、泥(ni)(ni)不(bu)(bu)沉积底部(bu),呈悬(xuan)浮状态。污(wu)(wu)(wu)泥(ni)(ni)床平均浓度为30~35g/l,则(ze)(ze)污(wu)(wu)(wu)泥(ni)(ni)负荷(he)为0.35~0.30kgCODcr/kg(ss).d。
3、生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)接触氧(yang)化(hua)工艺(yi)是介(jie)于活(huo)(huo)(huo)性污(wu)(wu)(wu)泥(ni)(ni)法(fa)与(yu)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)膜法(fa)之(zhi)间(jian)的(de)(de)(de)一(yi)种(zhong)污(wu)(wu)(wu)水(shui)(shui)(shui)处(chu)(chu)理(li)(li)工艺(yi)。池内设(she)有(you)填(tian)料(liao)(liao),微生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)一(yi)部(bu)分以生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)膜的(de)(de)(de)形式固(gu)着于填(tian)料(liao)(liao)表面,一(yi)部(bu)分则(ze)(ze)以絮状悬(xuan)浮生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)长(zhang)于水(shui)(shui)(shui)中(zhong)(zhong),因此它兼有(you)活(huo)(huo)(huo)性污(wu)(wu)(wu)泥(ni)(ni)法(fa)与(yu)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)滤(lv)池的(de)(de)(de)点(dian)(dian)。曝(pu)气(qi)系统可采用(yong)鼓风或射流(liu)曝(pu)氧(yang)增氧(yang)系统(设(she)计(ji)时必(bi)须考(kao)虑投(tou)资及(ji)运行成(cheng)本)。为培(pei)养微生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)的(de)(de)(de)不(bu)(bu)同的(de)(de)(de)优势菌种(zhong),将接触氧(yang)化(hua)池分为两格是行之(zhi)有(you)效的(de)(de)(de)。
4、A2/O、A3/O污(wu)(wu)(wu)水(shui)(shui)(shui)处(chu)(chu)理(li)(li)工艺(yi)的(de)(de)(de)运行操作由流(liu)入、反应(ying)(ying)(ying)、沉淀、排(pai)放、待机五个工序组(zu)成(cheng)。通过调(diao)节(jie)每个工序的(de)(de)(de)时间(jian),可达到除磷脱氮(dan)的(de)(de)(de)效果(guo)。
5、前(qian)处(chu)(chu)理(li)(li)——SBR反应(ying)(ying)(ying)器——过滤(lv)——出(chu)水(shui)(shui)(shui)
MORE