摘要:

為開發一種污水(shui)(shui)(shui)(shui)再生利用(yong)于(yu)農田(tian)(tian)灌溉領域的新型(xing)技術，本(ben)實驗以(yi)城市污水(shui)(shui)(shui)(shui)為研(yan)究對象，采用(yong)A2O-MBR工藝進(jin)(jin)行中試研(yan)究，并將系(xi)統(tong)出水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)與《農田(tian)(tian)灌溉水(shui)(shui)(shui)(shui)質(zhi)標(biao)準(zhun)(zhun)（GB5084-2005）》的主要(yao)水(shui)(shui)(shui)(shui)質(zhi)指標(biao)進(jin)(jin)行對比分析。結果表明，系(xi)統(tong)COD和(he)BOD5出水(shui)(shui)(shui)(shui)濃(nong)度范圍分別(bie)為3.2~59.6mg/L、1.0~7.6mg/L，系(xi)統(tong)出水(shui)(shui)(shui)(shui)pH為7.16~7.54，懸浮物濃(nong)度幾乎為0，上(shang)述(shu)指標(biao)均符合標(biao)準(zhun)(zhun)；TP、TN和(he)氨氮的出水(shui)(shui)(shui)(shui)范圍分別(bie)為0.03~0.79mg/L、1.6~17.7mg/L和(he)0.8~10.3mg/L。《農田(tian)(tian)灌溉水(shui)(shui)(shui)(shui)質(zhi)標(biao)準(zhun)(zhun)》沒(mei)有對上(shang)述(shu)3個指標(biao)提(ti)出具體(ti)要(yao)求，且(qie)少量的氮磷(lin)是植物生長的營養元素。該系(xi)統(tong)出水(shui)(shui)(shui)(shui)的主要(yao)水(shui)(shui)(shui)(shui)質(zhi)指標(biao)符合標(biao)準(zhun)(zhun)要(yao)求。

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