反沖洗過濾器倡導中水的回收利(li)用。近年來(lai)，市(shi)城(cheng)鄉建設和(he)水利(li)等(deng)相關職能(neng)部門一(yi)直倡導反沖洗(xi)過濾器中水回收利(li)用，也興建了(le)多個示范項目，但從實際(ji)利(li)用情況(kuang)來(lai)看，并沒有真正推廣開來(lai)。港城(cheng)缺(que)水，人均水資源占(zhan)(zhan)有量只(zhi)有390立(li)方米，遠低于全國人均占(zhan)(zhan)有量，如何(he)最大限度地(di)節約用水，一(yi)直是熱門話題(ti)之一(yi)。

　　中(zhong)水(shui)(shui)(shui)(shui)(shui)又(you)稱再生水(shui)(shui)(shui)(shui)(shui)、回用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)，是(shi)指城市(shi)污水(shui)(shui)(shui)(shui)(shui)和工業(ye)廢水(shui)(shui)(shui)(shui)(shui)經凈化處(chu)理(li)(li)達標，可(ke)在一(yi)定范圍內使用(yong)(yong)的(de)非飲(yin)用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)。我市(shi)缺水(shui)(shui)(shui)(shui)(shui)嚴重，中(zhong)水(shui)(shui)(shui)(shui)(shui)回用(yong)(yong)或(huo)可(ke)成(cheng)為港城“解渴”的(de)又(you)一(yi)途徑。但(dan)中(zhong)水(shui)(shui)(shui)(shui)(shui)回用(yong)(yong)受重視(shi)程(cheng)度不(bu)夠，目前(qian)僅(jin)大浦(pu)污水(shui)(shui)(shui)(shui)(shui)處(chu)理(li)(li)廠日處(chu)理(li)(li)污水(shui)(shui)(shui)(shui)(shui)達10萬(wan)噸，其水(shui)(shui)(shui)(shui)(shui)質已達到國家二級排放水(shui)(shui)(shui)(shui)(shui)標準，這些水(shui)(shui)(shui)(shui)(shui)可(ke)用(yong)(yong)于園林綠化、環衛等方面。但(dan)目前(qian)除少量由污水(shui)(shui)(shui)(shui)(shui)處(chu)理(li)(li)廠經反沖(chong)洗過(guo)濾器處(chu)理(li)(li)后(hou)自用(yong)(yong)外，其余均被直接排入大浦(pu)河并流入大海。

　　另外(wai)，近年來我(wo)市(shi)綠(lv)化覆蓋(gai)率不斷提高(gao)，截至去年底，我(wo)市(shi)城區綠(lv)地(di)(di)面積(ji)達(da)3910公頃，建(jian)成區綠(lv)地(di)(di)率已(yi)達(da)到(dao)37.3%，這(zhe)么多的(de)綠(lv)化物，僅(jin)少部分使用(yong)(yong)河(he)水(shui)澆灌(guan)；同時(shi)，因沒有專門的(de)管道及(ji)設(she)備，城區環衛設(she)施用(yong)(yong)水(shui)幾乎(hu)都使用(yong)(yong)自(zi)來水(shui)。目前(qian)我(wo)市(shi)每天用(yong)(yong)于城市(shi)綠(lv)地(di)(di)澆灌(guan)用(yong)(yong)水(shui)和(he)環衛清潔(jie)用(yong)(yong)水(shui)的(de)量已(yi)超過萬噸(dun)。中水(shui)的(de)利用(yong)(yong)率僅(jin)為10％左右(you)，學校、居民小區等回用(yong)(yong)中水(shui)者亦(yi)寥寥無(wu)幾。

　　中水(shui)(shui)(shui)回用大(da)(da)勢所(suo)趨,相(xiang)關部(bu)門(men)積極(ji)推廣(guang),中水(shui)(shui)(shui)回用省錢(qian)又環保，為何難以推廣(guang)，據市城市節(jie)水(shui)(shui)(shui)辦(ban)工作(zuo)人員(yuan)介(jie)紹(shao)，主要(yao)是因為中水(shui)(shui)(shui)回用先期投資大(da)(da)，一個小區建設(she)一套中水(shui)(shui)(shui)回用系統，全自動洗(xi)過濾器需要(yao)幾萬(wan)，再加上其中的過濾器設(she)備最(zui)少需要(yao)投資數百萬(wan)元，追求(qiu)利潤最(zui)大(da)(da)化(hua)的開發商一般不愿投入。

　　反沖洗過濾器中(zhong)水(shui)(shui)回用(yong)(yong)(yong)已(yi)是大勢所趨，市(shi)城(cheng)鄉建(jian)(jian)(jian)設部門(men)已(yi)把“三同時”審查納入建(jian)(jian)(jian)設項目基本審批程序，對(dui)不(bu)按(an)規(gui)定采用(yong)(yong)(yong)節(jie)(jie)水(shui)(shui)器具(ju)或節(jie)(jie)水(shui)(shui)設施(shi)不(bu)配(pei)套的(de)(de)(de)，不(bu)準(zhun)開(kai)工建(jian)(jian)(jian)設；對(dui)達(da)不(bu)到節(jie)(jie)水(shui)(shui)標(biao)(biao)準(zhun)要求(qiu)的(de)(de)(de)，限期整改；對(dui)整改仍(reng)不(bu)達(da)標(biao)(biao)的(de)(de)(de)，供水(shui)(shui)部門(men)不(bu)予(yu)供水(shui)(shui)，并按(an)規(gui)定予(yu)以(yi)一定的(de)(de)(de)處罰。對(dui)于中(zhong)水(shui)(shui)回用(yong)(yong)(yong)，當前可用(yong)(yong)(yong)“中(zhong)水(shui)(shui)水(shui)(shui)車”的(de)(de)(de)形式，率先在(zai)園林(lin)綠化、環衛、建(jian)(jian)(jian)筑等領域推(tui)廣，采用(yong)(yong)(yong)專線管(guan)道(dao)的(de)(de)(de)方式為企(qi)業提供用(yong)(yong)(yong)水(shui)(shui)服(fu)務。從長遠看，也(ye)可以(yi)借鑒外地先進(jin)經驗，鼓勵(li)社會和民間資本投入中(zhong)水(shui)(shui)管(guan)道(dao)建(jian)(jian)(jian)設，建(jian)(jian)(jian)議符合條件的(de)(de)(de)企(qi)業單位，使用(yong)(yong)(yong)反沖洗(xi)過(guo)濾器中(zhong)水(shui)(shui)回用(yong)(yong)(yong)系統(tong)，對(dui)中(zhong)水(shui)(shui)利(li)用(yong)(yong)(yong)工作做得好的(de)(de)(de)單位，給(gei)予(yu)一定補助(zhu)或獎勵(li)。