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農村生活污水處理后要達到的排放標準農(nong)村(cun)生(sheng)活污(wu)(wu)水(shui)(shui)(shui)(shui)處理工程首要確定污(wu)(wu)水(shui)(shui)(shui)(shui)處理后要達到(dao)的排放(fang)標(biao)準(zhun)。農(nong)村(cun)生(sheng)活污(wu)(wu)水(shui)(shui)(shui)(shui)處理設施水(shui)(shui)(shui)(shui)污(wu)(wu)染(ran)物(wu)(wu)直接(jie)排向(xiang)地(di)表(biao)水(shui)(shui)(shui)(shui)體時,排放(fang)限值(zhi)分別執(zhi)(zhi)行(xing)特別排放(fang)限值(zhi)、一級標(biao)準(zhun)、二(er)級標(biao)準(zhun)。排入(ru)具有(you)飲用水(shui)(shui)(shui)(shui)源功(gong)能的湖庫岸邊2公里以(yi)內的執(zhi)(zhi)行(xing)特別排放(fang)限值(zhi),控制(zhi)(zhi)的污(wu)(wu)染(ran)因子(zi)(zi)有(you)7項,分別是pH 值(zhi)、化學(xue)需(xu)氧(yang)量(liang)、懸浮物(wu)(wu)、總磷(lin)、氨氮、動植(zhi)物(wu)(wu)油和(he)總氮;排入(ru)地(di)表(biao)水(shui)(shui)(shui)(shui)Ⅱ類、Ⅲ類功(gong)能水(shui)(shui)(shui)(shui)域的執(zhi)(zhi)行(xing)一級標(biao)準(zhun),控制(zhi)(zhi)的污(wu)(wu)染(ran)因子(zi)(zi)有(you)6項,分別是pH 值(zhi)、化學(xue)需(xu)氧(yang)量(liang)、懸浮物(wu)(wu)、總磷(lin)、氨氮和(he)動植(zhi)物(wu)(wu)油;排入(ru)地(di)表(biao)水(shui)(shui)(shui)(shui)Ⅳ類、Ⅴ類功(gong)能水(shui)(shui)(shui)(shui)域的執(zhi)(zhi)行(xing)二(er)級標(biao)準(zhun),控制(zhi)(zhi)的污(wu)(wu)染(ran)因子(zi)(zi)有(you)5項,分別是pH 值(zhi)、化學(xue)需(xu)氧(yang)量(liang)、懸浮物(wu)(wu)、總磷(lin)和(he)動植(zhi)物(wu)(wu)油。標(biao)準(zhun)規定,農(nong)村(cun)生(sheng)活污(wu)(wu)水(shui)(shui)(shui)(shui)處理后用于(yu)養魚(yu)或(huo)排入(ru)漁業(ye)水(shui)(shui)(shui)(shui)體的,執(zhi)(zhi)行(xing)《漁業(ye)水(shui)(shui)(shui)(shui)質標(biao)準(zhun)》(GB 11607); 處理(li)后(hou)用于(yu)農田灌(guan)溉(gai)或排(pai)入(ru)農田灌(guan)溉(gai)渠的,執行(xing)《農田灌(guan)溉(gai)水質標(biao)準》(GB 5084);處理(li)后(hou)排(pai)入(ru)排(pai)堿渠和排(pai)入(ru)濕地、氧化塘(澇(lao)池)的,本(ben)標(biao)準的一級標(biao)準;其他綜合利用途(tu)徑執行(xing)本(ben)標(biao)準的二級標(biao)準。 |