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)活污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)处(chu)理(li)(li)设(she)(she)备在(zai)设(she)(she)计时(shi)要(yao)(yao)基(ji)于(yu)生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)特点
生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)是(shi)居民日常(chang)生(sheng)(sheng)(sheng)活中排(pai)出的(de)(de)(de)(de)(de)废水(shui)(shui)(shui)(shui)(shui)(shui),主(zhu)要(yao)(yao)来源(yuan)于(yu)居住建(jian)(jian)筑和公(gong)共建(jian)(jian)筑,如(ru)(ru)住宅、机(ji)关、学校、医院、商店、公(gong)共场所(suo)及工(gong)(gong)业(ye)企业(ye)卫生(sheng)(sheng)(sheng)间(jian)等(deng)。生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)所(suo)含的(de)(de)(de)(de)(de)污(wu)(wu)(wu)(wu)(wu)染(ran)物(wu)(wu)(wu)主(zhu)要(yao)(yao)是(shi)有(you)(you)机(ji)物(wu)(wu)(wu)(如(ru)(ru)蛋白质(zhi)、碳(tan)水(shui)(shui)(shui)(shui)(shui)(shui)化(hua)合物(wu)(wu)(wu)、脂肪、尿素(su)、氨氮等(deng))和大量(liang)病(bing)原(yuan)微生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(如(ru)(ru)寄生(sheng)(sheng)(sheng)虫卵和肠道传染(ran)病(bing)毒等(deng)),如(ru)(ru)果随意排(pai)放,水(shui)(shui)(shui)(shui)(shui)(shui)中的(de)(de)(de)(de)(de)污(wu)(wu)(wu)(wu)(wu)染(ran)物(wu)(wu)(wu)进入(ru)空气、土壤、水(shui)(shui)(shui)(shui)(shui)(shui)体等(deng)环境,会对我们的(de)(de)(de)(de)(de)生(sheng)(sheng)(sheng)产(chan)和生(sheng)(sheng)(sheng)活造(zao)成相当不(bu)利的(de)(de)(de)(de)(de)影响。因(yin)此,生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)都需要(yao)(yao)经过(guo)污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)处(chu)理(li)(li)设(she)(she)备的(de)(de)(de)(de)(de)处(chu)理(li)(li),污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)中的(de)(de)(de)(de)(de)大量(liang)污(wu)(wu)(wu)(wu)(wu)染(ran)物(wu)(wu)(wu)都被清理(li)(li)了,这(zhei)样的(de)(de)(de)(de)(de)污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)才(cai)能安全排(pai)放,不(bu)会对环境造(zao)成污(wu)(wu)(wu)(wu)(wu)染(ran)。
基(ji)于(yu)生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)特点,生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)处(chu)理(li)(li)设(she)(she)备在(zai)设(she)(she)计时(shi)必须(xu)遵以(yi)下(xia)原(yuan)则(ze):
1、厌氧(yang)(yang)水(shui)(shui)(shui)(shui)(shui)(shui)解池(chi)采用上(shang)升流式厌氧(yang)(yang)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)床(chuang)反(fan)应器的(de)(de)(de)(de)(de)形式,设(she)(she)计水(shui)(shui)(shui)(shui)(shui)(shui)力(li)停留时(shi)间(jian)为2~4小时(shi)。厌氧(yang)(yang)池(chi)下(xia)部为污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)床(chuang)区(qu),污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)床(chuang)厚度通(tong)常(chang)控制在(zai)1~1.2M之间(jian),进水(shui)(shui)(shui)(shui)(shui)(shui)系统(tong)可(ke)(ke)采用脉冲进水(shui)(shui)(shui)(shui)(shui)(shui)中阻力(li)布(bu)(bu)水(shui)(shui)(shui)(shui)(shui)(shui)系统(tong),底部设(she)(she)布(bu)(bu)水(shui)(shui)(shui)(shui)(shui)(shui)沟,保(bao)留污(wu)(wu)(wu)(wu)(wu)
2、泥(ni)(ni)不(bu)沉积(ji)底部,呈悬浮(fu)(fu)状态。污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)床(chuang)平均浓度为30~35g/l,则(ze)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)负荷为0.35~0.30kgCODcr/kg(ss).d。
3、生(sheng)(sheng)(sheng)物(wu)(wu)(wu)接触氧(yang)(yang)化(hua)工(gong)(gong)艺是(shi)介于(yu)活性(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)法与生(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)法之间(jian)的(de)(de)(de)(de)(de)一种污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)处(chu)理(li)(li)工(gong)(gong)艺。池(chi)内设(she)(she)有(you)(you)填(tian)料(liao),微生(sheng)(sheng)(sheng)物(wu)(wu)(wu)一部分(fen)以(yi)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)膜(mo)的(de)(de)(de)(de)(de)形式固着于(yu)填(tian)料(liao)表面(mian),一部分(fen)则(ze)以(yi)絮状悬浮(fu)(fu)生(sheng)(sheng)(sheng)长于(yu)水(shui)(shui)(shui)(shui)(shui)(shui)中,因(yin)此它(ta)兼有(you)(you)活性(xing)污(wu)(wu)(wu)(wu)(wu)泥(ni)(ni)法与生(sheng)(sheng)(sheng)物(wu)(wu)(wu)滤池(chi)的(de)(de)(de)(de)(de)点。曝气系统(tong)可(ke)(ke)采用鼓风或射流曝氧(yang)(yang)增氧(yang)(yang)系统(tong)(设(she)(she)计时(shi)必须(xu)考虑投资及运行(xing)成本)。为培养微生(sheng)(sheng)(sheng)物(wu)(wu)(wu)的(de)(de)(de)(de)(de)不(bu)同的(de)(de)(de)(de)(de)优(you)势(shi)菌种,将(jiang)接触氧(yang)(yang)化(hua)池(chi)分(fen)为两格(ge)是(shi)行(xing)之有(you)(you)效(xiao)的(de)(de)(de)(de)(de)。
4、A2/O、A3/O污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)处(chu)理(li)(li)工(gong)(gong)艺的(de)(de)(de)(de)(de)运行(xing)操作由(you)流入(ru)、反(fan)应、沉淀、排(pai)放、待机(ji)五个工(gong)(gong)序组(zu)成。通(tong)过(guo)调节每(mei)个工(gong)(gong)序的(de)(de)(de)(de)(de)时(shi)间(jian),可(ke)(ke)达(da)到除磷脱氮的(de)(de)(de)(de)(de)效(xiao)果。
5、前处(chu)理(li)(li)——SBR反(fan)应器——过(guo)滤——出水(shui)(shui)(shui)(shui)(shui)(shui)
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