相同pH條件下，共同作用體系中蛋白濃度比單獨溶菌酶作用系統和單獨烷基多糖苷作(zuo)用(yong)系統中的(de)蛋(dan)白濃度(du)(du)之(zhi)和要(yao)高。當pH分別為4、6、8和11時(shi)，共同作(zuo)用(yong)系統中的(de)蛋(dan)白濃度(du)(du)比單獨溶(rong)菌酶作(zuo)用(yong)系統和單獨烷基(ji)(ji)多糖苷作(zuo)用(yong)系統中的(de)蛋(dan)白濃度(du)(du)之(zhi)和分別高54.82、25.07、38.15和166.25 mg/L。說明聯合作(zuo)用(yong)系統的(de)水解(jie)效(xiao)果(guo)(guo)在(zai)酸性(xing)(xing)和堿性(xing)(xing)條(tiao)件(jian)下(xia)有(you)所(suo)提升。在(zai)酸性(xing)(xing)條(tiao)件(jian)下(xia)，濃度(du)(du)差(cha)值比在(zai)中性(xing)(xing)和弱酸堿性(xing)(xing)條(tiao)件(jian)大，水解(jie)效(xiao)果(guo)(guo)增強(qiang)；在(zai)堿性(xing)(xing)條(tiao)件(jian)下(xia)，濃度(du)(du)差(cha)值提高，水解(jie)效(xiao)果(guo)(guo)增強(qiang)。當pH=11時(shi)，蛋(dan)白濃度(du)(du)差(cha)值達到大，增強(qiang)效(xiao)果(guo)(guo)明顯。即酸性(xing)(xing)和堿性(xing)(xing)條(tiao)件(jian)下(xia)有(you)利于促(cu)進溶(rong)菌酶和烷基(ji)(ji)多糖苷聯合作(zuo)用(yong)的(de)污(wu)泥水解(jie)溶(rong)出蛋(dan)白的(de)效(xiao)果(guo)(guo)，在(zai)pH=11時(shi)，2h內促(cu)進效(xiao)果(guo)(guo)為顯著(zhu)。

pH對(dui)多糖(tang)(tang)的(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)效果更(geng)為(wei)(wei)復雜(za)。如圖4-4（a），當(dang)pH<8時(shi)，pH對(dui)促進各個體(ti)(ti)系(xi)(xi)(xi)(xi)(xi)中(zhong)(zhong)多糖(tang)(tang)溶(rong)出的(de)(de)影(ying)響不大。當(dang)在堿(jian)性(xing)條件下(xia)(xia)時(shi)，單(dan)(dan)獨(du)(du)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)中(zhong)(zhong)的(de)(de)多糖(tang)(tang)含(han)量(liang)(liang)明顯(xian)提升(sheng)，尤其是(shi)單(dan)(dan)獨(du)(du)溶(rong)菌酶作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)體(ti)(ti)系(xi)(xi)(xi)(xi)(xi)和(he)單(dan)(dan)獨(du)(du)污(wu)泥水解體(ti)(ti)系(xi)(xi)(xi)(xi)(xi)。而聯(lian)合(he)(he)(he)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)受Ph變(bian)化的(de)(de)影(ying)響相(xiang)(xiang)對(dui)較小。當(dang)pH分別為(wei)(wei)4、6、8和(he)11時(shi)，聯(lian)合(he)(he)(he)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)中(zhong)(zhong)剩余污(wu)泥的(de)(de)多糖(tang)(tang)含(han)量(liang)(liang)分別為(wei)(wei)1616.21、1741.13、1739.73和(he)1863.87 mg/L。與相(xiang)(xiang)同(tong)pH條件下(xia)(xia)單(dan)(dan)獨(du)(du)烷基多糖(tang)(tang)苷作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)體(ti)(ti)系(xi)(xi)(xi)(xi)(xi)中(zhong)(zhong)的(de)(de)多糖(tang)(tang)含(han)量(liang)(liang)相(xiang)(xiang)比(bi)(bi)(bi)，聯(lian)合(he)(he)(he)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)中(zhong)(zhong)的(de)(de)多糖(tang)(tang)濃度分別增(zeng)(zeng)長了153.71%、172.02%、163.21%和(he)114.70%；與相(xiang)(xiang)同(tong)pH條件下(xia)(xia)單(dan)(dan)獨(du)(du)溶(rong)菌酶作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)體(ti)(ti)系(xi)(xi)(xi)(xi)(xi)中(zhong)(zhong)的(de)(de)多糖(tang)(tang)含(han)量(liang)(liang)相(xiang)(xiang)比(bi)(bi)(bi)，聯(lian)合(he)(he)(he)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)中(zhong)(zhong)的(de)(de)多糖(tang)(tang)濃度分別增(zeng)(zeng)長了4340.25%、8012.58%、6169.01%和(he)558.51%；與單(dan)(dan)獨(du)(du)污(wu)泥作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)體(ti)(ti)系(xi)(xi)(xi)(xi)(xi)相(xiang)(xiang)比(bi)(bi)(bi)分別增(zeng)(zeng)長了5905.98%、10476.60%、9700.57%和(he)725.70%。說明無(wu)論是(shi)酸性(xing)，弱酸堿(jian)性(xing)還(huan)是(shi)堿(jian)性(xing)條件下(xia)(xia)，聯(lian)合(he)(he)(he)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)與單(dan)(dan)獨(du)(du)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)相(xiang)(xiang)比(bi)(bi)(bi)能顯(xian)著提高污(wu)泥中(zhong)(zhong)多糖(tang)(tang)含(han)量(liang)(liang)。

同樣，相同pH條(tiao)件下(xia)，共同作用(yong)體系中(zhong)(zhong)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)濃度(du)比(bi)單(dan)獨溶菌(jun)酶作用(yong)系統(tong)(tong)(tong)和(he)(he)(he)(he)單(dan)獨烷基(ji)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)苷作用(yong)系統(tong)(tong)(tong)中(zhong)(zhong)的(de)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)濃度(du)之和(he)(he)(he)(he)要高(gao)。當pH分別為(wei)(wei)4、6、8和(he)(he)(he)(he)11時，共同作用(yong)系統(tong)(tong)(tong)中(zhong)(zhong)的(de)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)濃度(du)比(bi)單(dan)獨溶菌(jun)酶作用(yong)系統(tong)(tong)(tong)和(he)(he)(he)(he)單(dan)獨烷基(ji)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)苷作用(yong)系統(tong)(tong)(tong)中(zhong)(zhong)的(de)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)濃度(du)之和(he)(he)(he)(he)分別高(gao)942.77、1079.60、1051.02和(he)(he)(he)(he)712.70 mg/L。可以看(kan)出(chu)(chu)(chu)，在(zai)酸性(xing)，堿性(xing)以及中(zhong)(zhong)性(xing)反應(ying)條(tiao)件范(fan)圍內，烷基(ji)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)苷和(he)(he)(he)(he)溶菌(jun)酶聯(lian)合作用(yong)在(zai)短時間內能對(dui)污泥微(wei)生物(wu)細胞中(zhong)(zhong)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)的(de)釋出(chu)(chu)(chu)有較大(da)的(de)促進作用(yong)。弱(ruo)酸性(xing)和(he)(he)(he)(he)弱(ruo)堿性(xing)條(tiao)件下(xia)，多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)濃度(du)差(cha)值(zhi)達到大(da)，增(zeng)強(qiang)效(xiao)果(guo)為(wei)(wei)明顯。而(er)在(zai)酸性(xing)和(he)(he)(he)(he)堿性(xing)條(tiao)件下(xia)，多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)濃度(du)差(cha)值(zhi)降低(di)(di)，增(zeng)強(qiang)效(xiao)果(guo)略有降低(di)(di)。這可能是因為(wei)(wei)在(zai)中(zhong)(zhong)性(xing)反應(ying)條(tiao)件范(fan)圍下(xia)，溶菌(jun)酶和(he)(he)(he)(he)烷基(ji)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)苷的(de)聯(lian)合作用(yong)已經大(da)量(liang)解(jie)析溶出(chu)(chu)(chu)EPS中(zhong)(zhong)的(de)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)物(wu)質(zhi)，即使改變溶液的(de)pH，提升溶出(chu)(chu)(chu)的(de)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)物(wu)質(zhi)含量(liang)有限。而(er)單(dan)獨作用(yong)下(xia)污泥的(de)EPS并未(wei)大(da)量(liang)解(jie)析，當改變pH時，將(jiang)極大(da)的(de)提高(gao)EPS解(jie)析出(chu)(chu)(chu)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)，從而(er)使多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)含量(liang)迅速提升。因此造成了酸堿性(xing)條(tiao)件下(xia)多(duo)(duo)(duo)(duo)糖(tang)(tang)(tang)(tang)濃度(du)差(cha)值(zhi)減小的(de)情況。

由(you)以上結果可(ke)知(zhi)，堿(jian)性(xing)條件對烷基(ji)多糖苷聯合(he)(he)溶(rong)菌酶催化污泥(ni)(ni)水解有(you)促進作用(yong)，并(bing)且隨著(zhu)pH的(de)增大，聯合(he)(he)作用(yong)系統對污泥(ni)(ni)的(de)水解作用(yong)增強，剩余污泥(ni)(ni)系統中的(de)SCOD、多糖和蛋白(bai)(bai)都隨之增加。當pH>11時(shi)，多糖，蛋白(bai)(bai)，SCOD的(de)增長幅度(du)減緩。且當pH=11時(shi)，SCOD,多糖和蛋白(bai)(bai)的(de)濃度(du)差值達(da)到(dao)大。綜合(he)(he)各(ge)項(xiang)指標確定優反應pH為(wei)11。