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農村污水處理設備整體構造的配套設置
編輯:濰坊國恒環保設備有限公司   時間:2023-03-24

  固液分離機收集在農村污水處理設備集糞池中的糞水,含有大量豬毛等不利于發酵且易堵塞水泵、閥門件的固體。在集糞池后設固液分離。去除未消化整體的粗纖維及豬毛,這部分污染物無論厭氧還是好氧都很難被分解,厭氧生化反應停留時間須達到40天以上,同時會產生大量沼渣,好氧生化反應對此類物質幾乎沒有降解能力,同時容易造成系統癱瘓。去除這部分污染物直接減少了后續污水處理系統的負荷,而且它是作有機肥的較佳原料。本方案選用振動篩固液分離機,篩網30目,過濾粒徑只0.65mm。

  格柵(zha)池(chi)養殖污水中(zhong)通(tong)常會夾帶(dai)很多較大異物,如輸精管等,需要對其進行(xing)預去除。

  集糞池污(wu)水經(jing)過格柵池后進(jin)入集糞池,用(yong)于調節水質水量(liang),安裝(zhuang)潛水攪拌機將污(wu)水和糞渣(zha)攪拌均勻,采(cai)用(yong)切割(ge)泵(beng)將糞污(wu)提升到固液分離機。

  氣浮分離機:由于(yu)養殖廢水具有一定特性(xing),懸(xuan)浮物(wu)濃度很(hen)高,而(er)懸(xuan)浮對生化(hua)系統有較大(da)的影響,所以在農村污水處理(li)設(she)備(bei)生化(hua)池前端設(she)置氣浮分離設(she)備(bei)去除(chu)懸(xuan)浮物(wu)。

  污(wu)(wu)(wu)泥(ni)(ni)(ni)脫水系(xi)(xi)統(tong)(tong)沼(zhao)液(ye)及(ji)(ji)沼(zhao)渣、沉(chen)(chen)淀池(chi)和系(xi)(xi)統(tong)(tong)內其(qi)它處理單元產生的(de)污(wu)(wu)(wu)泥(ni)(ni)(ni)進(jin)(jin)入污(wu)(wu)(wu)泥(ni)(ni)(ni)池(chi)濃縮(suo)后(hou)通過疊螺污(wu)(wu)(wu)泥(ni)(ni)(ni)脫水進(jin)(jin)行分離,去(qu)除厭氧未消(xiao)化完的(de)固(gu)體(ti)物質(zhi)及(ji)(ji)厭氧污(wu)(wu)(wu)泥(ni)(ni)(ni),并承擔后(hou)期沉(chen)(chen)淀系(xi)(xi)統(tong)(tong)及(ji)(ji)生化系(xi)(xi)統(tong)(tong)及(ji)(ji)沉(chen)(chen)淀系(xi)(xi)統(tong)(tong)排出(chu)的(de)剩余污(wu)(wu)(wu)泥(ni)(ni)(ni)的(de)壓(ya)濾(lv),通過該環節,沼(zhao)液(ye)沼(zhao)渣的(de)分離效(xiao)率可以(yi)(yi)達到95%以(yi)(yi)上(shang),COD可直(zhi)接降至1500-3000mg/L,懸浮(fu)物SS在600mg/L以(yi)(yi)下。此環節直(zhi)接去(qu)除厭氧系(xi)(xi)統(tong)(tong)和好氧系(xi)(xi)統(tong)(tong)污(wu)(wu)(wu)泥(ni)(ni)(ni),磷的(de)去(qu)除率達85%以(yi)(yi)上(shang)。

  兩(liang)級A/O生化(hua)(hua)工(gong)(gong)藝改良(liang)型2級A/O生化(hua)(hua)池,針對(dui)養殖(zhi)廢水(shui)不(bu)(bu)同(tong)濃度調(diao)整池體設計參數、調(diao)節回流(liu)比,增(zeng)強反硝化(hua)(hua)脫能(neng)(neng)力,同(tong)時使農村污水(shui)處理設備(bei)系(xi)(xi)統內(nei)活性污泥不(bu)(bu)造成(cheng)好(hao)氧(yang)(yang)(yang)過度,解(jie)決以(yi)往生化(hua)(hua)系(xi)(xi)統不(bu)(bu)穩(wen)定(ding)問題,同(tong)時大(da)(da)大(da)(da)增(zeng)加污染(ran)物去除(chu)(chu)能(neng)(neng)力,增(zeng)加生化(hua)(hua)系(xi)(xi)統穩(wen)定(ding)性,降低調(diao)試和操(cao)作難度,保(bao)障(zhang)出水(shui)穩(wen)定(ding)達(da)標(biao)排放。A/O工(gong)(gong)藝是缺(que)氧(yang)(yang)(yang)、好(hao)氧(yang)(yang)(yang)交替運(yun)行,由缺(que)氧(yang)(yang)(yang)池和好(hao)氧(yang)(yang)(yang)池共(gong)同(tong)組(zu)成(cheng),是目前國(guo)內(nei)外可以(yi)在(zai)去除(chu)(chu)有機物的(de)同(tong)時,達(da)到(dao)脫氮、除(chu)(chu)磷目的(de)主流(liu)工(gong)(gong)藝技(ji)術。

  缺(que)氧(yang)池(chi)(chi)(chi)(chi)(chi)(又稱兼(jian)氧(yang)池(chi)(chi)(chi)(chi)(chi))是(shi)指廢(fei)水(shui)(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)含(han)有(you)(you)(you)的(de)(de)(de)(de)(de)溶解(jie)(jie)氧(yang)較低即(ji)缺(que)氧(yang)條(tiao)件(jian)下(xia)(xia)(xia),好(hao)氧(yang)池(chi)(chi)(chi)(chi)(chi)回流(liu)的(de)(de)(de)(de)(de)混合液,通(tong)過兼(jian)氧(yang)微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)的(de)(de)(de)(de)(de)吸(xi)(xi)附以(yi)及(ji)生(sheng)(sheng)(sheng)化(hua)(hua)(hua)(hua)降解(jie)(jie)等作(zuo)用(yong),使回流(liu)廢(fei)水(shui)(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)NO3-N、NO2-N發生(sheng)(sheng)(sheng)反(fan)硝(xiao)(xiao)化(hua)(hua)(hua)(hua)生(sheng)(sheng)(sheng)化(hua)(hua)(hua)(hua)反(fan)應(ying),轉化(hua)(hua)(hua)(hua)成(cheng)氮(dan)氣(qi)。因此(ci)缺(que)氧(yang)反(fan)應(ying)除(chu)了(le)能部分降解(jie)(jie)廢(fei)水(shui)(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu)以(yi)外(wai),較為(wei)重要的(de)(de)(de)(de)(de)作(zuo)用(yong)是(shi)整(zheng)體去除(chu)廢(fei)水(shui)(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)NH3-N(含(han)總氮(dan)的(de)(de)(de)(de)(de)去除(chu))。好(hao)氧(yang)池(chi)(chi)(chi)(chi)(chi)是(shi)指廢(fei)水(shui)(shui)(shui)(shui)(shui)在有(you)(you)(you)充足溶解(jie)(jie)氧(yang)的(de)(de)(de)(de)(de)條(tiao)件(jian)下(xia)(xia)(xia),廢(fei)水(shui)(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu)在好(hao)氧(yang)微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)的(de)(de)(de)(de)(de)作(zuo)用(yong)下(xia)(xia)(xia)氧(yang)化(hua)(hua)(hua)(hua)分解(jie)(jie),有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu)濃度下(xia)(xia)(xia)降,微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)量增加。廢(fei)水(shui)(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu),先被吸(xi)(xi)附在活性污泥(ni)(ni)的(de)(de)(de)(de)(de)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)膜表面,并(bing)與微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)細(xi)(xi)(xi)胞(bao)接觸,在酶(mei)的(de)(de)(de)(de)(de)作(zuo)用(yong)下(xia)(xia)(xia),透過細(xi)(xi)(xi)胞(bao)壁(bi)進(jin)(jin)入微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)細(xi)(xi)(xi)胞(bao)體內(nei)(nei),小分子的(de)(de)(de)(de)(de)有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu)能夠直接透過細(xi)(xi)(xi)胞(bao)壁(bi)進(jin)(jin)入微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)體內(nei)(nei),而大分子有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu)則必須在細(xi)(xi)(xi)胞(bao)外(wai)酶(mei)-水(shui)(shui)(shui)(shui)(shui)解(jie)(jie)酶(mei)的(de)(de)(de)(de)(de)作(zuo)用(yong)下(xia)(xia)(xia)被水(shui)(shui)(shui)(shui)(shui)解(jie)(jie)為(wei)小分子后再(zai)被微(wei)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)(wu)攝(she)入細(xi)(xi)(xi)胞(bao)體內(nei)(nei)。有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu)終被分解(jie)(jie)成(cheng)CO2和H2O,并(bing)產生(sheng)(sheng)(sheng)活性污泥(ni)(ni)。同(tong)時(shi)廢(fei)水(shui)(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)氨(an)氮(dan)與含(han)氮(dan)有(you)(you)(you)機(ji)(ji)(ji)物(wu)(wu)(wu)(wu)在好(hao)氧(yang)池(chi)(chi)(chi)(chi)(chi)中(zhong)(zhong)(zhong)在硝(xiao)(xiao)化(hua)(hua)(hua)(hua)菌的(de)(de)(de)(de)(de)作(zuo)用(yong)下(xia)(xia)(xia)生(sheng)(sheng)(sheng)成(cheng)NO3-N或(huo)NO2-N,與農村污水(shui)(shui)(shui)(shui)(shui)處理設備厭氧(yang)缺(que)氧(yang)池(chi)(chi)(chi)(chi)(chi)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)反(fan)硝(xiao)(xiao)化(hua)(hua)(hua)(hua)反(fan)應(ying)形(xing)成(cheng)硝(xiao)(xiao)化(hua)(hua)(hua)(hua)—反(fan)硝(xiao)(xiao)化(hua)(hua)(hua)(hua)系統(tong),從而達到(dao)脫氮(dan)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。

農村污水處理設備整體構造的配套設置

農村污水處理設備構造的配置

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