嘉興(xing)市(shi)造紙(zhi)行(xing)(xing)業全部(bu)以廢(fei)(fei)(fei)紙(zhi)為主要原料，年產量(liang)600多(duo)萬(wan)噸，廢(fei)(fei)(fei)水(shui)(shui)排放量(liang)位居(ju)嘉興(xing)市(shi)工(gong)業行(xing)(xing)業第(di)二(er)，是工(gong)業污(wu)(wu)染深度削減(jian)的重(zhong)點行(xing)(xing)業。針對(dui)造紙(zhi)行(xing)(xing)業廢(fei)(fei)(fei)水(shui)(shui)存在(zai)排放量(liang)大(da)、廢(fei)(fei)(fei)水(shui)(shui)回(hui)用(yong)(yong)處理(li)過程(cheng)中容易形成(cheng)(cheng)離子累積的堵點、造紙(zhi)污(wu)(wu)泥利用(yong)(yong)和(he)處置效率低等問(wen)題(ti)，浙江大(da)學(xue)牽頭承擔的“十三五”水(shui)(shui)專項(xiang)嘉興(xing)項(xiang)目“平原河網地(di)區污(wu)(wu)染源(yuan)深度削減(jian)成(cheng)(cheng)套技(ji)術與綜(zong)合示范”課題(ti)，集成(cheng)(cheng)了(le)廢(fei)(fei)(fei)水(shui)(shui)多(duo)級回(hui)用(yong)(yong)、污(wu)(wu)泥綜(zong)合利用(yong)(yong)和(he)生物質(zhi)能(neng)再生使用(yong)(yong)等技(ji)術模式(shi)，創新研發了(le)造紙(zhi)廢(fei)(fei)(fei)水(shui)(shui)資(zi)源(yuan)化利用(yong)(yong)成(cheng)(cheng)套技(ji)術。  

針對(dui)造(zao)紙行(xing)業廢(fei)水(shui)(shui)(shui)(shui)(shui)排放(fang)量大的(de)(de)問題(ti)，課題(ti)組以(yi)(yi)提(ti)(ti)高水(shui)(shui)(shui)(shui)(shui)資源循(xun)(xun)環(huan)利用(yong)(yong)率(lv)(lv)為核心目標，提(ti)(ti)出(chu)制漿“零清水(shui)(shui)(shui)(shui)(shui)”、抄(chao)紙“零排放(fang)”的(de)(de)內(nei)部循(xun)(xun)環(huan)技(ji)(ji)術(shu)(shu)(shu)，研發出(chu)廢(fei)水(shui)(shui)(shui)(shui)(shui)回用(yong)(yong)處(chu)理(li)(li)技(ji)(ji)術(shu)(shu)(shu)，集(ji)成內(nei)部水(shui)(shui)(shui)(shui)(shui)循(xun)(xun)環(huan)、白水(shui)(shui)(shui)(shui)(shui)分質(zhi)回收和(he)(he)(he)廢(fei)水(shui)(shui)(shui)(shui)(shui)回用(yong)(yong)處(chu)理(li)(li)，構建出(chu)廢(fei)水(shui)(shui)(shui)(shui)(shui)多級回用(yong)(yong)技(ji)(ji)術(shu)(shu)(shu)模式。針對(dui)廢(fei)水(shui)(shui)(shui)(shui)(shui)回用(yong)(yong)處(chu)理(li)(li)過(guo)程中(zhong)離子累(lei)積的(de)(de)堵點問題(ti)，開發出(chu)污(wu)泥(ni)回流晶種(zhong)介導(dao)深度(du)脫鈣(gai)技(ji)(ji)術(shu)(shu)(shu)，完(wan)美突破了(le)以(yi)(yi)厭氧(yang)控鈣(gai)、好氧(yang)除鈣(gai)、深度(du)脫鈣(gai)為核心的(de)(de)降鈣(gai)控鈣(gai)關鍵(jian)技(ji)(ji)術(shu)(shu)(shu)，實現廢(fei)水(shui)(shui)(shui)(shui)(shui)回用(yong)(yong)處(chu)理(li)(li)的(de)(de)長效穩定(ding)運行(xing)。針對(dui)造(zao)紙污(wu)泥(ni)利用(yong)(yong)指(zhi)向性不強的(de)(de)問題(ti)，課題(ti)組首次明(ming)確了(le)污(wu)泥(ni)分類分質(zhi)處(chu)置方法，研發出(chu)漿渣和(he)(he)(he)斜網污(wu)泥(ni)再(zai)生(sheng)造(zao)紙技(ji)(ji)術(shu)(shu)(shu)，提(ti)(ti)出(chu)再(zai)生(sheng)造(zao)紙產能按(an)紙產能的(de)(de)10%配置，實現漿渣和(he)(he)(he)斜網污(wu)泥(ni)全部再(zai)生(sheng)造(zao)紙；開發了(le)粉煤(mei)灰和(he)(he)(he)十六烷基三甲基溴化銨（CTMAB）聯合調理(li)(li)初沉污(wu)泥(ni)和(he)(he)(he)其他(ta)污(wu)泥(ni)技(ji)(ji)術(shu)(shu)(shu)，調理(li)(li)后壓濾污(wu)泥(ni)含水(shui)(shui)(shui)(shui)(shui)率(lv)(lv)在55%左(zuo)右。課題(ti)組系(xi)統集(ji)成廢(fei)水(shui)(shui)(shui)(shui)(shui)厭氧(yang)產沼(zhao)、沼(zhao)氣(qi)(qi)生(sheng)物(wu)脫硫、沼(zhao)氣(qi)(qi)使用(yong)(yong)方式等工藝(yi)技(ji)(ji)術(shu)(shu)(shu)，形成造(zao)紙廢(fei)水(shui)(shui)(shui)(shui)(shui)生(sheng)物(wu)質(zhi)能再(zai)生(sheng)使用(yong)(yong)技(ji)(ji)術(shu)(shu)(shu)模式，建立設計工藝(yi)參數包，實現能源自給率(lv)(lv)≥100%，提(ti)(ti)升了(le)造(zao)紙行(xing)業生(sheng)物(wu)質(zhi)能再(zai)生(sheng)使用(yong)(yong)的(de)(de)系(xi)統性，實現廢(fei)水(shui)(shui)(shui)(shui)(shui)處(chu)理(li)(li)系(xi)統能源自給并(bing)富余(yu)。  

該技術成功(gong)應用于年產(chan)200萬噸造(zao)紙(zhi)(zhi)產(chan)能(neng)（約(yue)占嘉興(xing)市造(zao)紙(zhi)(zhi)產(chan)能(neng)1/3）的廢水(shui)(shui)資(zi)源化利用示范(fan)工(gong)程。第三(san)方監測數據表明，工(gong)程示范(fan)噸紙(zhi)(zhi)廢水(shui)(shui)排放量(liang)在3.12~4.15m³，比建設前降(jiang)低20%左右，且不(bu)到造(zao)紙(zhi)(zhi)行業國(guo)家(jia)最(zui)嚴排放標準(zhun)限值的50%；廢水(shui)(shui)處(chu)理系統(tong)能(neng)源自(zi)給率達(da)到213~570%；污泥再生造(zao)紙(zhi)(zhi)效益達(da)到每萬噸產(chan)能(neng)72萬元；廢水(shui)(shui)綜合(he)處(chu)理成本1.12~1.48元/m³，比現有技術降(jiang)低43~57%，實現了廢水(shui)(shui)資(zi)源的高(gao)效利用，推(tui)動了廢紙(zhi)(zhi)造(zao)紙(zhi)(zhi)行業的高(gao)質(zhi)量(liang)發展。  

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