治(zhi)(zhi)理河(he)(he)道與濕(shi)地外連(lian)接河(he)(he)道水(shui)(shui)(shui)(shui)質(zhi)(zhi)形成(cheng)明顯的差(cha)別,生(sheng)態攔(lan)污(wu)工(gong)程(cheng)治(zhi)(zhi)理水(shui)(shui)(shui)(shui)域(yu)內側(ce)(生(sheng)態攔(lan)污(wu)工(gong)程(cheng)治(zhi)(zhi)理河(he)(he)段(duan)水(shui)(shui)(shui)(shui)域(yu)向三垟濕(shi)地河(he)(he)網(wang)內延50米)水(shui)(shui)(shui)(shui)質(zhi)(zhi)較治(zhi)(zhi)理外側(ce)水(shui)(shui)(shui)(shui)域(yu)(生(sheng)態攔(lan)污(wu)工(gong)程(cheng)治(zhi)(zhi)理河(he)(he)段(duan)水(shui)(shui)(shui)(shui)域(yu)向三垟濕(shi)地河(he)(he)網(wang)外延50米)水(shui)(shui)(shui)(shui)質(zhi)(zhi)主要(yao)指標氨(an)氮平(ping)(ping)均降(jiang)(jiang)(jiang)低(di)39.03%,總磷(lin)平(ping)(ping)均降(jiang)(jiang)(jiang)低(di)61.07%,高錳酸鹽指數平(ping)(ping)均降(jiang)(jiang)(jiang)低(di)41.24%。符合合同要(yao)求(qiu)的降(jiang)(jiang)(jiang)低(di)20%以上(shang)。
治理區(qu)域(yu)水質施工前后對比(bi):
氨氮含(han)量比施(shi)工前平(ping)均(jun)下(xia)67.73%,高(gao)錳酸鹽指(zhi)數(shu)比施(shi)工前平(ping)均(jun)下(xia)降(jiang)58.52%以(yi)上,符(fu)(fu)合(he)合(he)同要(yao)求的(de)(de)降(jiang)低20%以(yi)上。溶解(jie)氧(yang)含(han)量平(ping)均(jun)值由(you)施(shi)工前的(de)(de)1.57mg/L提升(sheng)至4.01mg/L,平(ping)均(jun)提高(gao)160.65%,符(fu)(fu)合(he)合(he)同要(yao)求的(de)(de)提高(gao)20%以(yi)上。