Xu Darong 1,2, Zhang Zhongzhi 2, Jiang Hao 1, Ma Zhigang 1
(1. Beijing Guoneng Zhongdian simba rekuchengetedza uye Environmental Protection Technology Co., Ltd., Beijing 100022; 2. China University of Petroleum (Beijing), Beijing 102249)
Abstract: mumunda wemvura yakasviba uye marara emarara ekurapa, PAC nePAM zvakashandiswa zvakanyanya seyakajairika flocculants uye coagulant aids.Iri bepa rinounza maitiro ekushandisa uye mamiriro ekutsvagisa epac-pam munzvimbo dzakasiyana, inotsanangura muchidimbu manzwisisiro uye maonero evaongorori vakasiyana pakusanganiswa kwepac-pam, uye inoongorora zvizere zvinodiwa zvekushandisa uye misimboti yepac-pam pasi pemamiriro akasiyana ekuedza. uye mamiriro emumunda.Zvinoenderana nezviri mukati uye ongororo yemhedzisiro yeongororo, bepa rino rinonongedza musimboti wemukati wepac-pam wakashandiswa kune akasiyana siyana mamiriro ekushanda, uye inotaura kuti musanganiswa wePAC nePAM zvakare une hurema, uye maitiro ayo ekushandisa uye dosage inoda zvinosarudzwa maererano nemamiriro chaiwo.
Keywords: polyaluminium chloride;Polyacrylamide;Kurapa kwemvura;Flocculation
0 Nhanganyaya
Mundima yeindasitiri, kushandiswa kwakabatana kwe polyaluminium chloride (PAC) uye polyacrylamide (PAM) kurapa mvura yetsvina uye tsvina yakafanana yakagadzira cheni yakakura tekinoroji, asi maitiro ayo akabatanidzwa haana kujeka, uye chiyero chepimo chemamiriro ekushanda akasiyana. minda yakasiyana-siyana zvakare yakasiyana.
Iri bepa rinonyatsoongorora huwandu hukuru hwemabhuku akakodzera kumba nekune dzimwe nyika, rinopfupisa nzira yekubatanidza yePAC nePAC, uye rinoita huwandu hwakakwana hwezvakasiyana mhedzisiro yemhedzisiro pamwe nemhedzisiro chaiyo yePAC nePAM mumaindasitiri akasiyana, ane kutungamira kukosha. kune imwe tsvakiridzo mune zvinoenderana nendima.
1. Yemumba application yekutsvaga muenzaniso wepac-pam
Iyo crosslinking mhedzisiro yePAC nePAM inoshandiswa mune ese mafambiro ehupenyu, asi dosi uye inotsigira nzira dzekurapa dzakasiyana kune akasiyana mamiriro ekushanda uye nzvimbo dzekurapa.
1.1 tsvina yemumba uye marara emanisipala
Zhao Yueyang (2013) nevamwe vakaedza coagulation mhedzisiro yePAM se coagulant rubatsiro kuPAC nePAFC vachishandisa nzira yemukati bvunzo.Kuedza kwakawana kuti coagulation mhedzisiro yePAC mushure mePAM coagulation yakawedzera zvakanyanya.
Wang Mutong (2010) nevamwe vakadzidza maitiro ekurapa kwePAC + PA pane tsvina yemumba muguta, uye vakadzidza kubviswa kweCOD uye zvimwe zviratidzo kuburikidza ne orthogonal experiments.
Lin yingzi (2014) et al.Akadzidza iyo yakagadziridzwa coagulation mhedzisiro yePAC nePAM pane algae mune yekurapa mvura chirimwa.Yang Hongmei (2017) et al.Akadzidza maitiro ekurapa kwekushandiswa kwakasanganiswa pane kimchi tsvina yemvura, uye akafunga kuti iyo yakakwana pH kukosha yaive 6.
Fu peiqian (2008) et al.Ndakadzidza nezve mhedzisiro yecomposite flocculant inoshandiswa kushandisazve mvura.Nekuyera mhedzisiro yekubvisa kwetsvina senge turbidity, TP, COD uye phosphate mumasampuli emvura, zvinoonekwa kuti iyo composite flocculant ine yakanaka yekubvisa maitiro pamhando dzese dzetsvina.
Cao Longtian (2012) nevamwe vakagamuchira nzira yecomposite flocculation kugadzirisa matambudziko ekunonoka kwekuita mwero, flocs mwenje uye yakaoma kunyura mumvura yekurapa nzira muNortheast China nekuda kwekuderera kwekushisa muchando.
Liu Hao (2015) nevamwe.Akadzidza maitiro ekurapa ecomposite flocculant pane yakaoma sedimentation uye turbidity kuderedza kumiswa mutsvina yemumba, uye akaona kuti kuwedzera imwe huwandu hwePAM flocculate uchiwedzera PAM nePAC kunogona kukurudzira yekupedzisira kurapwa.
1.2 kudhinda nekudhaya mvura yetsvina uye kugadzira mapepa emarara
Zhang Lanhe (2015) et al.Akadzidza kurongeka kwechitosan (CTS) uye coagulant mukurapa kwekugadzira mapepa mvura, ndokuona kuti zvaive nani kuwedzera chitosan.
Kubvisa mitengo yeCOD uye turbidity yakawedzerwa ne13.2% uye 5.9%.
Xie Lin (2010) akadzidza mhedzisiro yePAC nePAM yakasanganiswa kurapwa kwepepa rekugadzira tsvina.
Liu Zhiqiang (2013) nevamwe vakashandisa vakazvigadzira PAC nePAC composite flocculant yakasanganiswa neultrasonic kurapa kudhinda nekudhaya tsvina yemvura.Yakagumiswa kuti apo pH inokosha yaiva pakati pe11 ne13, PAC yakatanga kuwedzerwa uye yakasimudzwa kwe2 min, uye ipapo PAC yakawedzerwa uye yakasimudzirwa 3 min, kurapa kwakange kwakanakisisa.
Zhou Danni (2016) nevamwe vakadzidza maitiro ekurapa kwePAC + PAM patsvina yemumba, akaenzanisa kurapwa kweiyo biological accelerator uye biological antidote, uye vakaona kuti PAC + PAM yaive nani pane biological kurapwa nzira mukubvisa mhedzisiro yemafuta, asi. PAC + PAM yaive nani pane biological kurapwa nzira muhupfu hwemvura.
Wang Zhizhi (2014) et al.Akadzidza nzira yekurapa yekurapa papermaking yepakati nhanho tsvina yemvura nePAC + PAM coagulation sechikamu cheiyo nzira.Kana dosage yePAC iri 250 mg/L, dosi yePAM iri 0.7 mg/L, uye kukosha kwepH kunenge kwasara kwazvakarerekera, mwero wekubvisa COD unosvika 68%.
Zuo Weiyuan (2018) nevamwe vakadzidza uye vakaenzanisa yakasanganiswa flocculation maitiro eFe3O4 / PAC / PAM.Muedzo unoratidza kuti kana reshiyo yevatatu iri 1: 2: 1, kurapwa kwekudhinda uye kudhaya mvura yetsvina ndiyo yakanyanya kunaka.
LV sining (2010) et al.Akadzidza maitiro ekurapa kwePAC + PAM musanganiswa pane yepakati nhanho mvura yetsvina.Tsvagiridzo inoratidza kuti iyo composite flocculation athari ndiyo yakanyanya kunaka munzvimbo ine acidic (pH 5).Iyo dosage yePAC ndeye 1200 mg / L, iyo dosage yePAM i120 mg / L, uye iyo cod yekubvisa mwero inopfuura 60%.
1.3 marasha emakemikari mvura yetsvina uye kunatsa mvura yetsvina
Yang Lei (2013) nevamwe.Akadzidza coagulation mhedzisiro yePAC + PAM mumarasha indasitiri yemarara emarara, akaenzanisa yakasara turbidity pasi pezviyero zvakasiyana, uye akapa iyo yakagadziridzwa dosi yePAM zvinoenderana neyakasiyana yekutanga turbidity.
Fang Xiaoling (2014) nevamwe vakafananidza coagulation mhedzisiro yePAC + Chi uye PAC + PAM pane yekunatsa tsvina yemvura.Vakagumisa kuti PAC + Chi yaive nani flocculation effect uye yakakwirira COD kubvisa kunyatsoita.Mhedzisiro yekuedza yakaratidza kuti yakanakisa yekukurudzira nguva yaive 10 min uye iyo yakakwana pH kukosha yaive 7.
Deng Lei (2017) nevamwe.Vakadzidza flocculation effect yePAC + PAM pakuchera mvura yetsvina, uye COD yekubvisa rate yakasvika kupfuura 80%.
Wu Jinhua (2017) et al.Akadzidza kurapwa kwemarasha makemikari wastewater ne coagulation.PAC ndeye 2 g / L uye PAM i1 mg / L. kuyedza kunoratidza kuti yakanakisa pH kukosha ndeye 8.
Guo Jinling (2009) nevamwe.Akaongorora maitiro ekugadzirisa mvura yecomposite flocculation uye akafunga kuti mhedzisiro yekubvisa yaive yakanyanya kunaka apo dosi yePAC yaive 24 mg / L uye PAM yaive 0.3 mg / L.
Lin Lu (2015) nevamwe.Akadzidza flocculation mhedzisiro yepac-pam musanganiswa pane emulsified mafuta ane tsvina pasi pemamiriro akasiyana, uye akaenzanisa mhedzisiro yeimwe flocculant.Chiyero chekupedzisira ndeichi: PAC 30 mg / L, pam6 mg / L, ambient tembiricha 40 ℃, kusarerekera pH kukosha uye sedimentation nguva kweanopfuura 30 min.Pasi pemamiriro akanyanya kunaka, iyo COD yekubvisa inoshanda inosvika 85%.
2 mhedziso uye mazano
Iko kusanganiswa kwepolyaluminium chloride (PAC) uye polyacrylamide (PAM) kwave kushandiswa zvakanyanya mumatanho ese ehupenyu.Iyo ine mukana mukuru mumunda wemvura yetsvina uye sludge kurapwa, uye kukosha kwayo kwemaindasitiri kunoda kuongororwa.
Iyo yekusanganisa michina yePAC nePAM inonyanya kutsamira pane yakanakisa ductility yePAM macromolecular chain, yakasanganiswa neAl3 + muPAC uye - O muPAM kuumba yakagadzikana network chimiro.Iyo inetiweki dhizaini inogona kudzikama envelopu kumwe kusvibiswa senge maoiri zvidimbu uye madonhwe emafuta, saka ine yakanakisa kurapwa kwemvura yetsvina ine marudzi mazhinji etsvina, kunyanya kugarisana kwemafuta nemvura.
Panguva imwecheteyo, musanganiswa wePAC nePAM zvakare une hurema.Mvura yemvura ye flocculate yakaumbwa yakakwira, uye chimiro chayo chemukati chakagadzikana chinotungamira kune zvinodiwa zvepamusoro zvekurapa kwechipiri.Naizvozvo, iyo imwe budiriro yePAC yakasanganiswa nePAM ichiri kutarisana nematambudziko uye nematambudziko.
Nguva yekutumira: Oct-09-2021