生活(huo)污水(shui)處理設(she)備(bei)排(pai)出的污水(shui)是否可以灌溉農田要看處理后出水(shui)的水(shui)質情況，達到灌溉標準(zhun)就可以灌溉農田。

　　我(wo)國(guo)是農(nong)業灌溉大(da)(da)國(guo), 水資源(yuan)短缺和水環境惡化(hua)是現(xian)(xian)階段(duan)面臨的(de)(de)兩大(da)(da)問(wen)題。解決(jue)農(nong)業用(yong)(yong)水的(de)(de)出路, 除了充分用(yong)(yong)好現(xian)(xian)有水資源(yuan), 遍實施節(jie)水農(nong)業之外,還(huan)需(xu)要(yao)把生活污水進行處理(li)利(li)用(yong)(yong)。城市(shi)污水經(jing)適當處理(li)后回(hui)用(yong)(yong)于農(nong)田灌溉, 其水質可(ke)靠、水量穩定。

　　污(wu)(wu)(wu)水(shui)(shui)(shui)(shui)經(jing)適當處(chu)(chu)理(li)后回用于(yu)農(nong)(nong)田(tian)灌溉(gai), 可取(qu)得以下(xia)效(xiao)(xiao)益: 農(nong)(nong)業(ye)提(ti)供新的(de)水(shui)(shui)(shui)(shui)源,節省大(da)量的(de)淡(dan)水(shui)(shui)(shui)(shui)資源, 緩解水(shui)(shui)(shui)(shui)資源短缺 的(de)矛盾。由于(yu)污(wu)(wu)(wu)水(shui)(shui)(shui)(shui)中存在(zai)氮、磷、鉀肥分和有機(ji)質, 可使(shi)農(nong)(nong)業(ye)增產, 取(qu)得可觀的(de)經(jing)濟(ji)效(xiao)(xiao)益, 增加農(nong)(nong)民收入，生活污(wu)(wu)(wu)水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)設備(bei)提(ti)高(gao)農(nong)(nong)民生活水(shui)(shui)(shui)(shui)平。若僅為(wei)滿足農(nong)(nong)田(tian)灌溉(gai)水(shui)(shui)(shui)(shui)質標準(zhun),污(wu)(wu)(wu)水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)工(gong)藝可適當簡化, 如(ru)采用 一級強化工(gong)藝, 可降低污(wu)(wu)(wu)水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)設施的(de)工(gong)程投資和運營費 用。污(wu)(wu)(wu)水(shui)(shui)(shui)(shui)不(bu)排(pai)向(xiang)各水(shui)(shui)(shui)(shui)體(ti), 利用土壤的(de)自(zi)凈能力, 大(da)限(xian)度(du) 地(di)消除水(shui)(shui)(shui)(shui)污(wu)(wu)(wu)染, 避(bi)免(mian)了污(wu)(wu)(wu)水(shui)(shui)(shui)(shui)直(zhi)接(jie)排(pai)入河流、湖泊等對水(shui)(shui)(shui)(shui)體(ti)造(zao) 成(cheng)直(zhi)接(jie)污(wu)(wu)(wu)染。

　　污(wu)水(shui)(shui)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)廠(chang)的工(gong)藝設(she)計可以采用(yong)兩(liang)段處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)法, 季節啟(qi)動段的一級強化(hua)(hua)(hua)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)工(gong)藝,僅滿足(zu)農(nong)(nong)田灌溉水(shui)(shui) 質要(yao)求, 節省運行(xing)費用(yong); 在(zai)非農(nong)(nong)灌季節同時啟(qi)動兩(liang)段處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)工(gong) 出(chu)(chu)水(shui)(shui)滿足(zu)污(wu)水(shui)(shui)綜合排放標準的要(yao)求.我(wo)國(guo)不少學者提出(chu)(chu)利用(yong)生(sheng)態(tai)工(gong)程處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)污(wu)水(shui)(shui), 實現污(wu)水(shui)(shui)資源(yuan)化(hua)(hua)(hua)。污(wu)水(shui)(shui)生(sheng)態(tai)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)系統(tong)包括穩(wen)定塘系統(tong)和土地(di)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)系統(tong)。我(wo)國(guo)的環境保護技(ji)術政(zheng)策也指出(chu)(chu): 城(cheng)市污(wu)水(shui)(shui)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li), 行(xing)污(wu)水(shui)(shui)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)廠(chang)與氧化(hua)(hua)(hua)塘、土地(di)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)系統(tong)相結合的政(zheng)策。污(wu)水(shui)(shui)生(sheng)態(tai)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)能(neng)有效(xiao)地(di)控制我(wo)國(guo)水(shui)(shui)體污(wu)染(ran)的進一步惡化(hua)(hua)(hua), 能(neng)把凈化(hua)(hua)(hua)后的城(cheng)市污(wu)水(shui)(shui)開辟為第(di)二水(shui)(shui)源(yuan),而且(qie)該處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)方法 低(di)(di)投(tou)資、低(di)(di)能(neng)耗(hao)、低(di)(di)成本、設(she)備簡單、易于(yu)管(guan)理(li)(li)(li)(li)(li)(li)(li), 尤其適合于(yu) 中小城(cheng)鎮的污(wu)水(shui)(shui)處(chu)(chu)(chu)(chu)理(li)(li)(li)(li)(li)(li)(li)。

　　生活污(wu)水處理設備排出的污(wu)水灌溉農田可以有效解決(jue)水資源短缺的問題，做到水資源的二次利用。