統籌推進區域再生水循環利用,支持缺水地區經濟社會可持續發展
【谷騰環保網訊】水(shui)資源(yuan)是制(zhi)約我(wo)國(guo)經濟社會可(ke)持續發展(zhan)(zhan)的瓶(ping)頸。開展(zhan)(zhan)區(qu)域(yu)再(zai)生水(shui)循環利用是緩解水(shui)資源(yuan)供(gong)需矛盾的有效措施(shi),是貫徹落實黨中央、國(guo)務院關于污水(shui)資源(yuan)化決策部(bu)署的重要舉措。
按照生態環(huan)境部等(deng)四(si)部門聯合印(yin)發(fa)的《區(qu)域再(zai)(zai)生水(shui)循環(huan)利(li)(li)用(yong)試點實施方(fang)案》(以下簡稱(cheng)《實施方(fang)案》)要(yao)求,近(jin)日,生態環(huan)境部聯合國家發(fa)展(zhan)改(gai)革(ge)委、住房城鄉建設(she)部、水(shui)利(li)(li)部印(yin)發(fa)了(le)《關于(yu)公布(bu)2022年區(qu)域再(zai)(zai)生水(shui)循環(huan)利(li)(li)用(yong)試點城市名單的通知(zhi)》(環(huan)辦(ban)水(shui)體函(han)〔2022〕502號),明確了(le)首批納(na)入區(qu)域再(zai)(zai)生水(shui)循環(huan)利(li)(li)用(yong)試點范圍的19個城市。這項(xiang)試點工作對于(yu)提(ti)高缺(que)水(shui)地(di)區(qu)再(zai)(zai)生水(shui)利(li)(li)用(yong)能(neng)力、緩解水(shui)資源供需(xu)矛盾、引領我國各地(di)挖掘污(wu)水(shui)資源化利(li)(li)用(yong)潛力具有重要(yao)意(yi)義。
區(qu)(qu)域再生水(shui)(shui)循環(huan)利(li)(li)用(yong)是指達標排放的(de)(de)(de)尾(wei)水(shui)(shui)經人工濕地(di)(di)水(shui)(shui)質凈(jing)化(hua)工程等生態措施進一步改善后,在一定區(qu)(qu)域統籌用(yong)于生產、生態、生活的(de)(de)(de)污水(shui)(shui)資(zi)源(yuan)(yuan)化(hua)利(li)(li)用(yong)模(mo)式(shi)。與污水(shui)(shui)資(zi)源(yuan)(yuan)化(hua)利(li)(li)用(yong)的(de)(de)(de)常規做法相比,區(qu)(qu)域再生水(shui)(shui)循環(huan)利(li)(li)用(yong)試點更(geng)加強調(diao)區(qu)(qu)域統籌、生態凈(jing)化(hua)、調(diao)蓄利(li)(li)用(yong),綜合效益更(geng)加顯著,對于推(tui)動缺水(shui)(shui)地(di)(di)區(qu)(qu)探索協同推(tui)進降碳減污擴綠(lv)增長的(de)(de)(de)水(shui)(shui)生態環(huan)境保護新(xin)路徑具有重要意義。
水資源已經成為我國經濟社會可持續發展的瓶頸
人(ren)多(duo)水(shui)(shui)(shui)少、水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)時空分(fen)布(bu)(bu)不(bu)均(jun)(jun),與經濟要素(su)之間不(bu)適(shi)配是(shi)我(wo)國(guo)(guo)(guo)基本水(shui)(shui)(shui)情。我(wo)國(guo)(guo)(guo)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)總量(liang)雖然較(jiao)大,但人(ren)均(jun)(jun)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)量(liang)只有世界平均(jun)(jun)水(shui)(shui)(shui)平的(de)1/4,是(shi)全(quan)球13個(ge)人(ren)均(jun)(jun)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)量(liang)最(zui)匱乏的(de)國(guo)(guo)(guo)家之一。隨著(zhu)人(ren)口數量(liang)的(de)不(bu)斷增加,人(ren)均(jun)(jun)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)量(liang)還將繼續降低。我(wo)國(guo)(guo)(guo)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)的(de)特點(dian)使水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)短缺問題更加突(tu)出。特點(dian)之一是(shi)年(nian)(nian)(nian)均(jun)(jun)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)量(liang)差(cha)別較(jiao)大。近20年(nian)(nian)(nian)來,水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)量(liang)最(zui)多(duo)的(de)是(shi)2010年(nian)(nian)(nian),比(bi)常年(nian)(nian)(nian)值偏(pian)多(duo)11.5%;最(zui)少的(de)是(shi)2011年(nian)(nian)(nian),比(bi)常年(nian)(nian)(nian)值偏(pian)少16.1%,也(ye)是(shi)1956年(nian)(nian)(nian)以來最(zui)少的(de)一年(nian)(nian)(nian)。一般認為,隨著(zhu)氣(qi)候(hou)變(bian)暖等因素(su)的(de)影響,水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)的(de)年(nian)(nian)(nian)均(jun)(jun)變(bian)化還將進一步加大。另一個(ge)特點(dian)是(shi)南北(bei)(bei)分(fen)布(bu)(bu)嚴重(zhong)不(bu)均(jun)(jun),與土地資(zi)(zi)(zi)(zi)源(yuan)(yuan)、人(ren)口的(de)空間分(fen)布(bu)(bu)不(bu)相匹配。在全(quan)國(guo)(guo)(guo)10個(ge)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)片區(qu)中,北(bei)(bei)方六區(qu)(松花(hua)江、遼(liao)河(he)(he)(he)、海河(he)(he)(he)、黃河(he)(he)(he)和(he)淮河(he)(he)(he)五大流域以及西北(bei)(bei)諸河(he)(he)(he))的(de)水(shui)(shui)(shui)資(zi)(zi)(zi)(zi)源(yuan)(yuan)量(liang)僅占全(quan)國(guo)(guo)(guo)的(de)16.7%,但土地和(he)耕地卻遠高(gao)于南方四區(qu)。
水(shui)(shui)(shui)(shui)資源(yuan)已(yi)經(jing)成為(wei)制(zhi)約我國(guo)(guo)經(jing)濟社會(hui)可(ke)持(chi)續發展的(de)瓶頸(jing)。我國(guo)(guo)從“十(shi)二五”開始施行“最嚴格的(de)水(shui)(shui)(shui)(shui)資源(yuan)管(guan)理制(zhi)度”,劃(hua)(hua)定(ding)用(yong)水(shui)(shui)(shui)(shui)紅線(xian),控制(zhi)用(yong)水(shui)(shui)(shui)(shui)量增長,2021年(nian)(nian)用(yong)水(shui)(shui)(shui)(shui)量控制(zhi)在(zai)5920億立(li)(li)方(fang)米(mi)(mi)(mi),與2012年(nian)(nian)的(de)6131億立(li)(li)方(fang)米(mi)(mi)(mi)相比(bi),總用(yong)水(shui)(shui)(shui)(shui)量實現了零增長。這一成績主要(yao)來源(yuan)于(yu)工(gong)業(ye)(ye)節水(shui)(shui)(shui)(shui)。2012年(nian)(nian)到(dao)(dao)2021年(nian)(nian),工(gong)業(ye)(ye)用(yong)水(shui)(shui)(shui)(shui)量由1379億立(li)(li)方(fang)米(mi)(mi)(mi)下降(jiang)到(dao)(dao)1050億立(li)(li)方(fang)米(mi)(mi)(mi),農(nong)業(ye)(ye)灌(guan)溉一直維持(chi)在(zai)3700億立(li)(li)方(fang)米(mi)(mi)(mi)左(zuo)右,生(sheng)活用(yong)水(shui)(shui)(shui)(shui)由740億立(li)(li)方(fang)米(mi)(mi)(mi)增長到(dao)(dao)910億立(li)(li)方(fang)米(mi)(mi)(mi)。其(qi)中,萬元工(gong)業(ye)(ye)增加(jia)值用(yong)水(shui)(shui)(shui)(shui)量由65立(li)(li)方(fang)米(mi)(mi)(mi)降(jiang)低(di)到(dao)(dao)28立(li)(li)方(fang)米(mi)(mi)(mi),京津(jin)冀地區(qu)已(yi)經(jing)接(jie)近10立(li)(li)方(fang)米(mi)(mi)(mi),提前十(shi)年(nian)(nian)達到(dao)(dao)了《全國(guo)(guo)水(shui)(shui)(shui)(shui)資源(yuan)綜合規劃(hua)(hua)》提出的(de)2030年(nian)(nian)目標。與此同(tong)時,還要(yao)看到(dao)(dao),2021年(nian)(nian)全國(guo)(guo)規模以(yi)上工(gong)業(ye)(ye)用(yong)水(shui)(shui)(shui)(shui)重復(fu)利用(yong)率(lv)達到(dao)(dao)92.9%,節水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)平(ping)已(yi)經(jing)遠超發達國(guo)(guo)家,工(gong)業(ye)(ye)領域(yu)節水(shui)(shui)(shui)(shui)潛(qian)力已(yi)經(jing)不大,而(er)工(gong)業(ye)(ye)進一步(bu)增長、城鎮化率(lv)穩步(bu)提升、糧食穩產(chan)高產(chan)、生(sheng)態環境持(chi)續改善(shan)等(deng)各領域(yu)用(yong)水(shui)(shui)(shui)(shui)需(xu)求持(chi)續上升,水(shui)(shui)(shui)(shui)資源(yuan)供需(xu)矛(mao)盾(dun)亟待(dai)破解。有鑒于(yu)此,我國(guo)(guo)對黃河(he)、淮河(he)、海(hai)河(he)等(deng)缺水(shui)(shui)(shui)(shui)流域(yu)提出了“以(yi)水(shui)(shui)(shui)(shui)定(ding)城、以(yi)水(shui)(shui)(shui)(shui)定(ding)地、以(yi)水(shui)(shui)(shui)(shui)定(ding)人、以(yi)水(shui)(shui)(shui)(shui)定(ding)產(chan)”,建立(li)(li)水(shui)(shui)(shui)(shui)資源(yuan)剛性(xing)約束制(zhi)度。
污水再生利用是突破水資源瓶頸的重要途徑
縱觀解決水資源緊缺(que)問(wen)題(ti)的(de)(de)國際經驗,包括污水再生利(li)用(yong)在內的(de)(de)非常(chang)規水資源開發(fa)利(li)用(yong)是(shi)根(gen)本途徑,以色列、新加坡、澳(ao)大利(li)亞、南非、納(na)米比亞等缺(que)水國家都是(shi)開發(fa)利(li)用(yong)非常(chang)規水資源的(de)(de)典(dian)范。
以(yi)色(se)(se)列(lie)(lie)60%國土是沙漠,其余部(bu)分屬于半干旱地區,年降(jiang)水(shui)(shui)(shui)(shui)(shui)量435毫米,2017年人均水(shui)(shui)(shui)(shui)(shui)資源(yuan)降(jiang)低到214立方米,水(shui)(shui)(shui)(shui)(shui)資源(yuan)極度(du)匱乏,不足(zu)我(wo)國的1/10。但(dan)是,以(yi)色(se)(se)列(lie)(lie)政府2013年10月宣布全國用(yong)水(shui)(shui)(shui)(shui)(shui)不再(zai)(zai)受天氣制約,水(shui)(shui)(shui)(shui)(shui)安全問題已經(jing)徹底解(jie)決,其根本途徑就是污水(shui)(shui)(shui)(shui)(shui)再(zai)(zai)生(sheng)利用(yong)和海(hai)水(shui)(shui)(shui)(shui)(shui)淡化等非常(chang)規水(shui)(shui)(shui)(shui)(shui)資源(yuan)的開(kai)發。從20世紀(ji)90年代開(kai)始,以(yi)色(se)(se)列(lie)(lie)建設了(le)(le)大量污水(shui)(shui)(shui)(shui)(shui)再(zai)(zai)生(sheng)、輸配(pei)、儲存、利用(yong)設施,目(mu)前污水(shui)(shui)(shui)(shui)(shui)再(zai)(zai)生(sheng)利用(yong)率超過90%,下一步(bu)擬全部(bu)再(zai)(zai)生(sheng)利用(yong)。以(yi)色(se)(se)列(lie)(lie)再(zai)(zai)生(sheng)水(shui)(shui)(shui)(shui)(shui)90%用(yong)于農業灌溉,支撐起(qi)現代高效農業,除(chu)了(le)(le)自給自足(zu),還成為農產品出口國。
以(yi)(yi)色(se)列通過開(kai)發非常規水(shui)(shui)(shui)資源(yuan)(yuan)(yuan)成功(gong)解決(jue)了水(shui)(shui)(shui)安(an)全問(wen)題,我(wo)國(guo)北方許多(duo)地(di)區年(nian)降水(shui)(shui)(shui)量、人均水(shui)(shui)(shui)資源(yuan)(yuan)(yuan)量均低于(yu)以(yi)(yi)色(se)列,這些地(di)區應借鑒以(yi)(yi)色(se)列污水(shui)(shui)(shui)資源(yuan)(yuan)(yuan)化成功(gong)經驗,開(kai)發非常規水(shui)(shui)(shui)資源(yuan)(yuan)(yuan),解決(jue)當地(di)缺(que)水(shui)(shui)(shui)問(wen)題。
美(mei)國(guo)人均(jun)水(shui)(shui)資源量是(shi)我國(guo)的4倍多,西部(bu)嚴重缺水(shui)(shui),有(you)限(xian)的水(shui)(shui)資源主要(yao)用于農業(ye)灌溉。2014年,美(mei)國(guo)國(guo)會認為單純(chun)通過(guo)提高(gao)用水(shui)(shui)效率無法滿足糧食安全和經濟持續增(zeng)長的需要(yao),預計2025年將(jiang)有(you)超(chao)過(guo)40個州面臨缺水(shui)(shui)狀態(tai),責成聯(lian)邦(bang)政府(fu)采取措(cuo)施(shi)應對水(shui)(shui)危(wei)機。2019年,聯(lian)邦(bang)政府(fu)宣布實施(shi)國(guo)家水(shui)(shui)回用行(xing)動(dong)計劃,以保障美(mei)國(guo)水(shui)(shui)安全以及水(shui)(shui)資源的可持續性和韌性為目(mu)(mu)標,全面規(gui)劃并實施(shi)包括市(shi)政污(wu)水(shui)(shui)等(deng)六大方(fang)向(xiang)的收集、再生與回用,確定了(le)200個行(xing)動(dong)目(mu)(mu)標,組織28個各方(fang)獨立責任人、80個合(he)作機構開展11個戰略主題、37個具體(ti)行(xing)動(dong),同(tong)時成立了(le)跨部(bu)門工(gong)作組,統(tong)一協調(diao)各方(fang)。
我(wo)國(guo)水(shui)(shui)(shui)資源總量及特征與美國(guo)有相似(si)之處,兩(liang)國(guo)也(ye)都有通過(guo)大規(gui)模跨(kua)流域調(diao)水(shui)(shui)(shui)應(ying)對缺(que)水(shui)(shui)(shui)的實踐,但都沒有解決水(shui)(shui)(shui)資源緊缺(que)問題。因此,我(wo)國(guo)應(ying)當(dang)借鑒美國(guo)做法,系(xi)統(tong)謀劃、全面開(kai)展污水(shui)(shui)(shui)再生利(li)用,突破水(shui)(shui)(shui)資源瓶(ping)頸,支撐(cheng)經濟社(she)會可(ke)持續發(fa)展。
把握好區域再生水循環利用的幾個關鍵
一是著力拓寬再生水綜合利用的渠道。污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)利(li)(li)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)方(fang)向(xiang)包(bao)括農業(ye)灌(guan)(guan)溉、工(gong)業(ye)利(li)(li)用(yong)(yong)(yong)(yong)(yong)、市(shi)政雜(za)用(yong)(yong)(yong)(yong)(yong)以及生(sheng)(sheng)(sheng)態環(huan)境等方(fang)面。以色列是目前公認污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)利(li)(li)用(yong)(yong)(yong)(yong)(yong)最成(cheng)功的(de)(de)(de)(de)國(guo)家,90%的(de)(de)(de)(de)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)用(yong)(yong)(yong)(yong)(yong)于農業(ye)灌(guan)(guan)溉,超(chao)過灌(guan)(guan)溉用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)(liang)的(de)(de)(de)(de)60%。為(wei)實現90%的(de)(de)(de)(de)利(li)(li)用(yong)(yong)(yong)(yong)(yong)率(lv),以色列建(jian)設(she)了(le)(le)共計(ji)200多座、總庫容超(chao)過兩億(yi)立方(fang)米的(de)(de)(de)(de)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫,敷設(she)了(le)(le)從水(shui)(shui)(shui)(shui)(shui)(shui)(shui)庫到灌(guan)(guan)溉點(dian)(dian)的(de)(de)(de)(de)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)輸(shu)配管(guan)道,覆蓋(gai)了(le)(le)絕大部分國(guo)土。污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)利(li)(li)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)第二個(ge)方(fang)向(xiang)應是熱電及工(gong)業(ye)大戶的(de)(de)(de)(de)冷卻水(shui)(shui)(shui)(shui)(shui)(shui)(shui),用(yong)(yong)(yong)(yong)(yong)量(liang)(liang)較大,用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)點(dian)(dian)集中,管(guan)道敷設(she)難度(du)小。如果將(jiang)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)用(yong)(yong)(yong)(yong)(yong)于市(shi)政雜(za)用(yong)(yong)(yong)(yong)(yong),用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)(liang)小且(qie)分散,再(zai)(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)沿城市(shi)建(jian)成(cheng)區逆向(xiang)擴散,缺少儲存(cun)設(she)施(shi)(shi)用(yong)(yong)(yong)(yong)(yong)地和(he)輸(shu)配管(guan)線路由,利(li)(li)用(yong)(yong)(yong)(yong)(yong)難度(du)較大。生(sheng)(sheng)(sheng)態環(huan)境補水(shui)(shui)(shui)(shui)(shui)(shui)(shui)方(fang)向(xiang)可以作為(wei)接受剩余再(zai)(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)備用(yong)(yong)(yong)(yong)(yong)渠道。試(shi)點(dian)(dian)城市(shi)可以借鑒以色列的(de)(de)(de)(de)經驗,選擇(ze)需求大、基礎好、綜合效益明(ming)顯的(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)途作為(wei)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)利(li)(li)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)重點(dian)(dian)方(fang)向(xiang),系(xi)統規劃建(jian)設(she)相關設(she)施(shi)(shi)。
二是牢牢守住風險評估管控的關口。首先,做好源頭(tou)(tou)管控(kong)。我國不少城(cheng)鎮(zhen)污水(shui)(shui)處理廠接(jie)(jie)納(na)了(le)工業廢水(shui)(shui),影(ying)響了(le)再(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)的(de)(de)(de)循環(huan)利用(yong)。試點(dian)(dian)城(cheng)市(shi)不應將(jiang)接(jie)(jie)納(na)含有毒有害物(wu)質的(de)(de)(de)工業廢水(shui)(shui)的(de)(de)(de)污水(shui)(shui)處理廠納(na)入區(qu)(qu)域再(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)循環(huan)利用(yong)體(ti)系(xi)。其次,規范(fan)運行(xing)維護。現(xian)(xian)有技(ji)術(shu)裝備總體(ti)上(shang)能保(bao)障污染(ran)物(wu)穩(wen)(wen)定(ding)去(qu)除(chu),再(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)水(shui)(shui)質風(feng)險往往來自操作(zuo)層(ceng)面監測偏(pian)差(cha)、運行(xing)操作(zuo)不當乃至(zhi)錯接(jie)(jie)漏(lou)接(jie)(jie)等(deng)運維問題(ti)。試點(dian)(dian)城(cheng)市(shi)要建立(li)健全相(xiang)關(guan)(guan)設施的(de)(de)(de)長(chang)效(xiao)運營(ying)機制,制定(ding)完善運行(xing)管理規范(fan),確(que)保(bao)水(shui)(shui)質穩(wen)(wen)定(ding)滿足回用(yong)要求。最后,要嚴格監督(du)管理。規模化長(chang)期使用(yong)再(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)存在(zai)一定(ding)風(feng)險,關(guan)(guan)于(yu)病原體(ti)、鹽(yan)(yan)度以(yi)及內分(fen)泌干擾(rao)物(wu)等(deng)新興污染(ran)物(wu)對人(ren)體(ti)健康和生(sheng)(sheng)(sheng)態影(ying)響的(de)(de)(de)研究一直在(zai)進行(xing)。以(yi)色(se)列(lie)開始將(jiang)再(zai)(zai)生(sheng)(sheng)(sheng)水(shui)(shui)大規模用(yong)于(yu)農業灌溉以(yi)后,發現(xian)(xian)部分(fen)地區(qu)(qu)地下水(shui)(shui)有鹽(yan)(yan)漬化傾向,隨(sui)后開展了(le)全國性源頭(tou)(tou)減鹽(yan)(yan)行(xing)動,有效(xiao)控(kong)制了(le)地下水(shui)(shui)鹽(yan)(yan)漬化傾向。試點(dian)(dian)城(cheng)市(shi)要加強循環(huan)利用(yong)全過程水(shui)(shui)質水(shui)(shui)量監測,嚴格過程管理和末端監管,確(que)保(bao)水(shui)(shui)質安全可控(kong)。
三是充分發揮有為政府和有效市場的作用。區域再生(sheng)水(shui)循環利用涉及(ji)多(duo)行業多(duo)部(bu)門(men),與(yu)社會公眾利益(yi)息息相關,需(xu)要有力(li)的(de)政(zheng)策(ce)支(zhi)持(chi)保駕護航。首先,組織(zhi)體(ti)(ti)系(xi)(xi)要到(dao)位,針對(dui)目(mu)標(biao)確定(ding)(ding)統計考核體(ti)(ti)系(xi)(xi),以考核促達標(biao)。其次,建(jian)立科(ke)學合理的(de)再生(sheng)水(shui)價格體(ti)(ti)系(xi)(xi),涵蓋再生(sheng)水(shui)生(sheng)產成本(ben),同時給予適當(dang)的(de)財政(zheng)支(zhi)持(chi)。最后,理順融資機制(zhi),落實稅費(fei)優惠政(zheng)策(ce),提高市場主體(ti)(ti)積(ji)極(ji)性。美國聯邦(bang)政(zheng)府對(dui)西部(bu)14個(ge)缺水(shui)州的(de)污水(shui)再生(sheng)利用項目(mu)補(bu)貼(tie)25%的(de)建(jian)設費(fei)用,40個(ge)州制(zhi)定(ding)(ding)了鼓(gu)勵政(zheng)策(ce)。以色列制(zhi)定(ding)(ding)了鼓(gu)勵再生(sheng)水(shui)農業灌溉利用的(de)價格政(zheng)策(ce)。這些做法都可以作為試點城市的(de)有益(yi)借鑒(jian)。
作(zuo)者系中(zhong)(zhong)(zhong)國人民大(da)學(xue)環境學(xue)院教授(shou)、博士生導師(shi),中(zhong)(zhong)(zhong)國人民大(da)學(xue)低碳水(shui)環境技(ji)術(shu)研究(jiu)中(zhong)(zhong)(zhong)心主(zhu)任(ren)

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