Xu Daring 1,2, Zhang Zhongzhi 2, Jiang Hao 1, Ma Zhigang 1
(1. Beijing Guoneng Zhongdian ukulondolozwa kwamandla kanye nobuchwepheshe bokuvikelwa kwemvelo Co., Ltd., Beijing 100022; 2. China University of Petroleum (Beijing), Beijing 102249)
Isifinyezo: emkhakheni wokwelashwa kwamanzi amdaka kanye nezinsalela zemfucuza, i-PAC kanye ne-PAM zisetshenziswe kabanzi njenge-flocculants ezivamile kanye nezinsiza ze-coagulant. Leli phepha lethula umphumela wokusetshenziswa kanye nesimo socwaningo lwe-pac-pam emikhakheni ehlukene, lichaza kafushane ukuqonda kanye nemibono yabacwaningi abahlukene ngokuhlanganiswa kwe-pac-pam, futhi lihlaziya ngokuphelele izidingo zokusetshenziswa kanye nezimiso ze-pac-pam ngaphansi kwezimo ezahlukene zokuhlola kanye nezimo zasensimini. Ngokusho kokuqukethwe kanye nemiphumela yokuhlaziywa kokubuyekezwa, leli phepha likhomba isimiso sangaphakathi se-pac-pam esisetshenziswa ezimweni ezahlukene zokusebenza, futhi likhomba ukuthi inhlanganisela ye-PAC kanye ne-PAM nayo inamaphutha, futhi indlela yokusetshenziswa kwayo kanye nomthamo kudingeka kunqunywe ngokwesimo esithile.
Amagama angukhiye: i-polyaluminium chloride; i-Polyacrylamide; Ukwelashwa ngamanzi; i-Flocculation
0 Isingeniso
Emkhakheni wezimboni, ukusetshenziswa okuhlangene kwe-polyaluminium chloride (PAC) kanye ne-polyacrylamide (PAM) ukwelapha amanzi angcolile kanye nemfucuza efanayo kuye kwakha uchungechunge lobuchwepheshe oluvuthiwe, kodwa indlela yokusebenza kwalo ehlangene ayicacile, futhi isilinganiso somthamo wezimo zokusebenza ezahlukene emikhakheni ehlukahlukene naso sihlukile.
Leli phepha lihlaziya ngokuphelele inani elikhulu lezincwadi ezifanele ekhaya nakwamanye amazwe, lifingqa indlela yokuhlanganisa i-PAC ne-PAC, futhi lenze izibalo eziphelele ngeziphetho ezahlukahlukene ezisekelwe emibonweni ehambisana nomphumela wangempela we-PAC ne-PAM ezimbonini ezahlukahlukene, okubaluleke kakhulu ocwaningweni olwengeziwe emikhakheni ehlobene.
1. Isibonelo socwaningo lwezicelo zasekhaya lwe-pac-pam
Umphumela wokuxhumanisa we-PAC kanye ne-PAM usetshenziswa kuzo zonke izindlela zokuphila, kodwa umthamo kanye nezindlela zokwelapha ezisekelayo zihlukile ezimweni ezahlukene zokusebenza kanye nasezindaweni zokwelapha.
1.1 indle yasekhaya kanye nodaka lukamasipala
UZhao Yueyang (2013) nabanye bahlole umphumela wokujiya kwe-PAM njengosizo lokujiya ku-PAC kanye ne-PAFC ngokusebenzisa indlela yokuhlola yangaphakathi. Ukuhlolwa kwathola ukuthi umphumela wokujiya kwe-PAC ngemva kokujiya kwe-PAM wanda kakhulu.
UWang Mutong (2010) nabanye bafunde ngomphumela wokwelapha we-PAC + PA endle yasekhaya edolobheni, futhi bafunda ukusebenza kahle kokususwa kwe-COD kanye nezinye izinkomba ngokusebenzisa izivivinyo ze-orthogonal.
ULin yingzi (2014) nabanye. Bafunde ngomphumela wokujiya kwe-PAC kanye ne-PAM ku-algae esitshalweni sokwelapha amanzi. UYang Hongmei (2017) nabanye. Bafunde ngomphumela wokwelapha wokusetshenziswa okuhlangene emanzini amdaka e-kimchi, futhi bacabangela ukuthi inani le-pH elifanele kakhulu lalingu-6.
UFu peiqian (2008) nabanye. Bafunde ngomphumela we-composite flocculant esetshenziswa ukusebenzisa amanzi kabusha. Ngokulinganisa imiphumela yokususwa kokungcola okufana nokuthuthumela, i-TP, i-COD kanye ne-phosphate kumasampula amanzi, kutholakale ukuthi i-composite flocculant inomphumela omuhle wokususwa kuzo zonke izinhlobo zokungcola.
UCao Longtian (2012) nabanye basebenzise indlela yokuxubana ukuze baxazulule izinkinga zesivinini sokusabela kancane, ama-floc alula kanye nobunzima bokucwila enkambisweni yokwelapha amanzi eNyakatho-mpumalanga yeShayina ngenxa yokushisa okuphansi ebusika.
ULiu Hao (2015) nabanye. Bafunde ngomphumela wokwelapha we-composite flocculant ekumisweni okunzima kwe-sedimentation kanye nokumiswa kokunciphisa ukuthambisa emanzini angcolile asekhaya, bathola ukuthi ukwengeza inani elithile le-PAM flocculate ngenkathi ufaka i-PAM ne-PAC kungakhuthaza umphumela wokugcina wokwelapha.
1.2 ukuphrinta nokudaya amanzi amdaka kanye nokwenza amaphepha amanzi amdaka
UZhang Lanhe (2015) nabanye. Bafunde ngomphumela wokuxhumanisa we-chitosan (CTS) kanye ne-coagulant ekwelapheni amanzi angcolile ephepha, bathola ukuthi kungcono ukwengeza i-chitosan.
Amazinga okususwa kwe-COD kanye ne-turbidity akhuliswe ngo-13.2% kanye no-5.9%.
UXie Lin (2010) wafunda umphumela wokwelashwa okuhlangene kwe-PAC ne-PAM kwamanzi angcolile okwenza iphepha.
ULiu Zhiqiang (2013) nabanye basebenzise i-PAC kanye ne-PAC composite flocculant eyenziwe ngokwabo ehlanganiswe ne-ultrasonic ukwelapha ukuphrinta nokudaya amanzi angcolile. Kwaphethwa ngokuthi lapho inani le-pH liphakathi kuka-11 no-13, i-PAC yafakwa kuqala futhi yavuselelwa imizuzu emi-2, kwabe sekufakwa i-PAC futhi yavuselelwa imizuzu emi-3, umphumela wokwelapha waba ngcono kakhulu.
UZhou Danni (2016) nabanye bafunde umphumela wokwelapha we-PAC + PAM emanzini angcolile asekhaya, baqhathanisa umphumela wokwelapha we-accelerator yezinto eziphilayo kanye ne-antidote yezinto eziphilayo, futhi bathola ukuthi i-PAC + PAM yayingcono kunendlela yokwelapha yezinto eziphilayo ekususeni uwoyela, kodwa i-PAC + PAM yayingcono kakhulu kunendlela yokwelapha yezinto eziphilayo ebuchosheni bekhwalithi yamanzi.
UWang Zhizhi (2014) nabanye. Bafunde indlela yokwelapha yokwenza iphepha ngamanzi amdaka aphakathi nendawo nge-PAC + PAM coagulation njengengxenye yendlela. Uma umthamo we-PAC ungu-250 mg / L, umthamo we-PAM ungu-0.7 mg / L, futhi inani le-pH licishe lingathathi hlangothi, izinga lokususwa kwe-COD lifinyelela ku-68%.
UZuo Weiyuan (2018) nabanye bafunde futhi baqhathanisa umphumela wokugeleza oxubile we-Fe3O4 / PAC / PAM. Ukuhlolwa kukhombisa ukuthi uma isilinganiso salokhu okuthathu singu-1:2:1, umphumela wokwelapha wokuphrinta nokudaya amanzi amdaka ungcono kakhulu.
I-LV sineng (2010) nabanye. Bafunde umphumela wokwelashwa kwenhlanganisela ye-PAC + PAM emanzini angcolile aphakathi nendawo. Ucwaningo lubonisa ukuthi umphumela we-composite flocculation ungcono kakhulu endaweni ene-acidic (pH 5). Umthamo we-PAC ungu-1200 mg / L, umthamo we-PAM ungu-120 mg / L, kanti izinga lokususwa kwe-cod lingaphezu kuka-60%.
1.3 amanzi angcolile amakhemikhali amalahle kanye namanzi angcolile okuhlanza
UYang Lei (2013) nabanye. Bafunde umphumela wokujiya kwe-PAC + PAM ekuphathweni kwamanzi amdaka embonini yamalahle, baqhathanisa ukujiya okusele ngaphansi kwezilinganiso ezahlukene, futhi banikeza umthamo olungisiwe we-PAM ngokuya ngokujiya kokuqala okuhlukile.
UFang Xiaoling (2014) nabanye baqhathanise umphumela wokujiya kwe-PAC + Chi kanye ne-PAM emanzini angcolile okuhlanza. Baphetha ngokuthi i-PAC + Chi yayinomphumela ongcono wokujiya kanye nokusebenza kahle kokususa i-COD okuphezulu. Imiphumela yokuhlola ibonise ukuthi isikhathi esihle sokuxuba sasiyimizuzu eyi-10 kanti inani le-pH elihle laliyi-7.
UDeng Lei (2017) nabanye. Bafunde ngomphumela we-flocculation we-PAC + PAM emanzini angcolile okubhoboza uketshezi, futhi izinga lokususwa kwe-COD lafinyelela ngaphezu kuka-80%.
UWu Jinhua (2017) nabanye. Bafunde ukwelashwa kwamanzi angcolile amakhemikhali amalahle ngokuwahlanganisa. I-PAC ingu-2 g / L kanti i-PAM ingu-1 mg / L. Ukuhlolwa kukhombisa ukuthi inani le-pH elihle kakhulu lingu-8.
UGuo Jinling (2009) nabanye. Bafunde umphumela wokwelashwa kwamanzi we-composite flocculation futhi bacabangela ukuthi umphumela wokususwa wawungcono kakhulu lapho umthamo we-PAC wawungu-24 mg / L kanti i-PAM yayingu-0.3 mg / L.
ULin Lu (2015) nabanye. Bafunde umphumela we-flocculation wenhlanganisela ye-pac-pam emanzini angcolile aqukethe uwoyela ohlanganisiwe ngaphansi kwezimo ezahlukene, futhi baqhathanisa umphumela we-flocculant eyodwa. Umthamo wokugcina yi: PAC 30 mg / L, pam6 mg / L, izinga lokushisa elizungezile elingu-40 ℃, inani le-pH elingathathi hlangothi kanye nesikhathi sokuthungwa kwenhlabathi isikhathi esingaphezu kwemizuzu engama-30. Ngaphansi kwezimo ezinhle kakhulu, ukusebenza kahle kokususwa kwe-COD kufinyelela cishe ku-85%.
2 isiphetho kanye neziphakamiso
Inhlanganisela ye-polyaluminium chloride (PAC) kanye ne-polyacrylamide (PAM) isetshenziswe kabanzi kuzo zonke izindlela zokuphila. Inamandla amakhulu emkhakheni wokwelashwa kwamanzi angcolile kanye nodaka, futhi inani layo lezimboni lidinga ukuhlolisiswa kabanzi.
Indlela yokuhlanganisa i-PAC ne-PAM incike kakhulu ekuguquguqukeni okuhle kakhulu kwe-PAM macromolecule chain, ehlanganiswe ne-Al3 + ku-PAC kanye ne-O ku-PAM ukwakha isakhiwo senethiwekhi esizinzile. Isakhiwo senethiwekhi singasimboza ngokuzinzile ezinye izinto ezingcolile njengezinhlayiya eziqinile namaconsi kawoyela, ngakho-ke sinomphumela omuhle kakhulu wokwelapha amanzi angcolile anezinhlobo eziningi zokungcola, ikakhulukazi ukuhlala ndawonye kwamafutha namanzi.
Ngesikhathi esifanayo, inhlanganisela ye-PAC ne-PAM nayo inamaphutha. Okuqukethwe kwamanzi kwe-flocculate eyakhiwe kuphezulu, futhi isakhiwo sayo sangaphakathi esizinzile siholela ezidingweni eziphakeme zokwelashwa kwesibili. Ngakho-ke, intuthuko eyengeziwe ye-PAC ehlanganiswe ne-PAM isabhekene nobunzima nezinselele.
Isikhathi sokuthunyelwe: Okthoba-09-2021