按污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)來(lai)源(yuan)分類,污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)處理一般(ban)分為生(sheng)(sheng)(sheng)產污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)處理和生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)處理。生(sheng)(sheng)(sheng)產污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)包(bao)括(kuo)工業污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)、農(nong)業污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)以及(ji)醫療污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)等(deng),而(er)生(sheng)(sheng)(sheng)活污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)就是(shi)日常(chang)(chang)生(sheng)(sheng)(sheng)活產生(sheng)(sheng)(sheng)的(de)污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)。污(wu)(wu)(wu)(wu)水(shui)(shui)(shui)(shui)(shui)(shui)處理被廣泛應用于建(jian)筑、交通、能源(yuan)、石(shi)化、環保、城市景觀(guan)、醫療、餐飲等(deng)各個領域,也越(yue)(yue)來(lai)越(yue)(yue)多(duo)地走進尋常(chang)(chang)百姓的(de)日常(chang)(chang)生(sheng)(sheng)(sheng)活。
現代污水處(chu)理(li)設備技術,按(an)處(chu)理(li)程度劃分,可分為一級(ji)、二級(ji)和三級(ji)處(chu)理(li)。
工業污(wu)水處(chu)(chu)理設備一(yi)級處(chu)(chu)理:
主要去(qu)除污(wu)(wu)水中呈(cheng)懸(xuan)浮狀態的(de)固體污(wu)(wu)染物(wu)質,物(wu)理處(chu)(chu)理法大部分只(zhi)能完成一(yi)(yi)級(ji)處(chu)(chu)理的(de)要求。經過一(yi)(yi)級(ji)處(chu)(chu)理的(de)污(wu)(wu)水,BOD一(yi)(yi)般可去(qu)除30%左右,達(da)不到排放標準。一(yi)(yi)級(ji)處(chu)(chu)理屬于二級(ji)處(chu)(chu)理的(de)預處(chu)(chu)理。
工業(ye)污水處(chu)理設備(bei)二級處(chu)理:
主要去除(chu)污(wu)水中(zhong)呈膠(jiao)體和溶解狀態的有機(ji)污(wu)染物質(BOD,COD物質),去除(chu)率可達90%以上,使(shi)有機(ji)污(wu)染物達到排(pai)放標準。
工業污(wu)水處理(li)設備三級處理(li):
進一步(bu)處(chu)理難降解的有機物、氮和磷等能夠導致水體富營養化的可溶(rong)性無(wu)機物等。主要方法有生物脫氮除(chu)磷法,混凝沉淀法,砂率(lv)法,活性炭吸(xi)附(fu)法,離子交換法和電滲分析法等。