Xu Darong 1,2, Zhang Zhongzhi 2, Jiang Hao 1, Ma Zhigang 1
(1. Beijing Guoneng Zhongdian kuchengetedza simba uye Environmental Protection Technology Co., Ltd., Beijing 100022; 2. China University of Petroleum (Beijing), Beijing 102249)
Pfupiso: Munyaya yekurapa mvura yakasviba nemarara, PAC nePAM zvave zvichishandiswa zvakanyanya semaflocculants anowanzo shandiswa uye anobatsira pakusangana kwemvura. Pepa iri rinopa ruzivo nezvekushandiswa kwepac-pam uye mamiriro ekutsvagisa muminda yakasiyana, rinotsanangura muchidimbu kunzwisisa nemaonero evaongorori vakasiyana pamusoro pekubatanidzwa kwepac-pam, uye rinoongorora zvizere zvinodiwa nemisimboti yekushandiswa kwepac-pam pasi pemamiriro akasiyana ekuyedza nemamiriro emumunda. Zvichienderana nezviri mukati nemhedzisiro yekuongorora kweongororo, bepa iri rinoratidza musimboti wemukati wepac-pam unoshandiswa mumamiriro akasiyana ekushanda, uye rinoratidza kuti musanganiswa wePAC nePAM unewo zvikanganiso, uye nzira yekushandisa kwayo uye chiyero zvinofanirwa kusarudzwa zvichienderana nemamiriro chaiwo.
Mashoko akakosha: polyaluminium chloride; Polyacrylamide; Kurapa nemvura; Flocculation
0 Nhanganyaya
Mundima yemaindasitiri, kushandiswa pamwe chete kwepolyaluminium chloride (PAC) nepolyacrylamide (PAM) kurapa mvura yakasviba nemarara akafanana kwakagadzira tekinoroji yakakura, asi mashandiro ayo ekubatana haana kujeka, uye chiyero chemuyero wemamiriro akasiyana ekushanda munzvimbo dzakasiyana chakasiyanawo.
Pepa iri rinoongorora zvizere huwandu hwakawanda hwezvinyorwa zvine chekuita nezviri mukati menyika nekunze kwenyika, rinopfupikisa mashandiro ekubatanidza kwePAC nePAC, uye rinopa nhamba dzakakwana pamhedzisiro dzakasiyana-siyana dzekuongorora pamwe chete nemhedzisiro chaiyo yePAC nePAM mumaindasitiri akasiyana-siyana, izvo zvine kukosha kukuru kwekutsvaga kwakawedzerwa muminda ine chekuita nazvo.
1. Muenzaniso wekutsvaga kwekushandisa kwepac-pam mudzimba
Kubatana kwePAC nePAM kunoshandiswa mumativi ese ehupenyu, asi chiyero uye nzira dzekutsigira kurapwa dzakasiyana pamamiriro akasiyana ekushanda nenzvimbo dzakasiyana dzekurapa.
1.1 tsvina yemumba uye tsvina yemuguta
Zhao Yueyang (2013) nevamwe vakaedza simba rePAM rekuonda senzira yekubatsira PAC nePAFC kuburikidza nekushandisa nzira yekuedza mukati. Kuedza uku kwakawana kuti simba rePAC rekuonda mushure mekuonda kwePAM rakawedzera zvakanyanya.
Wang Mutong (2010) nevamwe vakadzidza nezvekurapa kwePAC + PA patsvina yemumba muguta, uye vakadzidza nezvekushanda zvakanaka kwekubvisa COD nezvimwe zviratidzo kuburikidza nekuyedza kwe orthogonal.
Lin yingzi (2014) nevamwe. Vakadzidza nezvekuwedzera kwekuvharika kwePAC nePAM paalgae mufekitori yekurapa mvura. Yang Hongmei (2017) nevamwe. Vakadzidza nezvekushandiswa pamwe chete kwemvura yakasviba yekimchi, uye vakaona kuti pH yakakosha yaive 6.
Fu peiqian (2008) nevamwe. Vakadzidza nezvekushanda kwecomposite flocculant inoshandiswa pakushandisazve mvura. Nekuyera mhedzisiro yekubvisa tsvina yakadai se turbidity, TP, COD uye phosphate mumasampuli emvura, zvakaonekwa kuti composite flocculant ine mhedzisiro yakanaka yekubvisa tsvina yemarudzi ese.
Cao Longtian (2012) nevamwe vakashandisa nzira yekubatanidza flocculation kugadzirisa matambudziko ekukurumidza kwekuita, flocs dzakareruka uye kuoma kunyura mumvura muNortheast China nekuda kwekupisa kwakaderera munguva yechando.
Liu Hao (2015) nevamwe vake. Vakadzidza nezvemhedzisiro yekurapwa kwecomposite flocculant pakurapwa kwakaoma kwesedimentation uye turbidity reduction suspension mutsvina yemumba, uye vakaona kuti kuwedzera huwandu hwakati hwePAM flocculate uku uchiwedzera PAM nePAC kunogona kukurudzira mhedzisiro yekupedzisira yekurapwa.
1.2 kudhinda nekudhaya mvura yakasviba uye kugadzira mapepa
Zhang Lanhe (2015) nevamwe vake vakadzidza nezvekubatana kwe chitosan (CTS) uye coagulant mukurapa mvura yakasviba yakagadzirwa nepepa, uye vakaona kuti zvaive nani kuwedzera chitosan.
Mwero wekubvisa COD ne turbidity wakawedzera ne13.2% uye 5.9%.
Xie Lin (2010) akadzidza nezvemhedzisiro yekushandiswa pamwe chete kwePAC nePAM pakugadzira mvura yakasviba.
Liu Zhiqiang (2013) nevamwe vakashandisa PAC nePAC composite flocculant vakazvigadzira pamwe chete ne ultrasonic kurapa kudhinda nekudhaya mvura yakasviba. Zvakagumiswa kuti kana pH yava pakati pe11 ne13, PAC yakatanga yawedzerwa nekukurunga kwemaminitsi maviri, uye PAC yakawedzerwa nekukurunga kwemaminitsi matatu, mhedzisiro yekurapa ndiyo yaive yakanyanya kunaka.
Zhou Danni (2016) nevamwe vakadzidza nezvekurapa kwePAC + PAM patsvina yemumba, vakaenzanisa kurapa kwekushandisa accelerator yezvemhuka uye mushonga wezvemhuka, uye vakaona kuti PAC + PAM yaive nani pane nzira yekurapa yezvemhuka pakubvisa mafuta, asi PAC + PAM yaive nani pane nzira yekurapa yezvemhuka pakubvisa chepfu yemhando yemvura.
Wang Zhizhi (2014) nevamwe vake. Vakadzidza nzira yekurapa nayo papermaking yepakati pemvura yakasviba nePAC + PAM coagulation sechikamu chenzira iyi. Kana dosage yePAC iri 250 mg / L, dosage yePAM iri 0.7 mg / L, uye pH value inenge isina kwayakarerekera, COD removal rate inosvika 68%.
Zuo Weiyuan (2018) nevamwe vakadzidza uye vakaenzanisa mhedzisiro yeF3O4 / PAC / PAM yekuyerera kwemvura. Bvunzo iyi inoratidza kuti kana chiyero chezvitatu chiri 1:2:1, mhedzisiro yekurapa yekudhinda nekudhaya mvura yakasviba ndiyo yakanakisa.
LV sineng (2010) nevamwe. Vakadzidza nezvekurapa kwemusanganiswa wePAC + PAM mumvura yakasviba iri pakati nepakati. Tsvagiridzo iyi inoratidza kuti mhedzisiro yeflocculation inosanganisa zvinhu zvakawanda ndiyo yakanakisa munzvimbo ine acidity (pH 5). Chiyero chePAC i1200 mg / L, chiyero chePAM i120 mg / L, uye chiyero chekubvisa cod chinopfuura 60%.
1.3 mvura yakasviba yemakemikari emarasha uye mvura yakasviba inocheneswa
Yang Lei (2013) nevamwe vake vakadzidza nezve PAC + PAM inokonzeresa kuvharika kwemvura inoraswa mumaindasitiri emarara, vakaenzanisa kusviba kwakasara pasi pehuwandu hwakasiyana, uye vakapa chiyero chakagadziriswa chePAM zvichienderana nekusviba kwekutanga kwakasiyana.
Fang Xiaoling (2014) nevamwe vakaenzanisa simba re PAC + Chi ne PAC + PAM pakuonda kwemvura yakasviba mu refinery. Vakagumisa kuti PAC + Chi ine simba re flocculation riri nani uye kushanda zvakanaka kwe COD. Zvakabuda muongororo zvakaratidza kuti nguva yakanakisisa yekukurunga yaive maminetsi gumi uye pH yakakosha yaive 7.
Deng Lei (2017) nevamwe. Vakadzidza nezvekushanda kwePAC + PAM pakudhonza mvura ine tsvina, uye huwandu hweCOD removal rate hwakasvika pamusoro pe80%.
Wu Jinhua (2017) nevamwe. Vakadzidza nezvekurapa mvura yakasviba yemakemikari emarasha nekuibatanidza. PAC i2 g / L uye PAM i1 mg / L. Kuedza uku kunoratidza kuti pH yakanakisa i8.
Guo Jinling (2009) nevamwe vake. Vakadzidza nezvekurapa kwemvura kwecomposite flocculation uye vakaona kuti kubvisa kwacho kwaive kwakanyanya kunaka apo dosi yePAC yaive 24 mg / L uye PAM yaive 0.3 mg / L.
Lin Lu (2015) nevamwe. Vakadzidza nezve flocculation effect ye pac-pam combination pa emulsified oil ine tsvina mumvura ine emulsified mumamiriro akasiyana, uye vakaenzanisa mhedzisiro ye flocculant imwe chete. Chiyero chekupedzisira ndeichi: PAC 30 mg / L, pam6 mg / L, ambient temperature 40 ℃, neutral pH value uye sedimentation time kweanopfuura 30 min. Mumamiriro ezvinhu akanaka kwazvo, COD removal efficiency inosvika 85%.
2 mhedziso nemazano
Kusanganiswa kwepolyaluminium chloride (PAC) nepolyacrylamide (PAM) kwave kuchishandiswa zvakanyanya mumativi ese ehupenyu. Kune mukana mukuru wekugadzirisa mvura yakasviba uye tsvina, uye kukosha kwayo muindasitiri kunofanirwa kuongororwa zvakanyanya.
Kubatanidzwa kwePAC nePAM kunonyanya kutsamira pakusimba kwakanaka kwePAM macromolecular chain, pamwe chete neAl3 + muPAC uye -O muPAM kuti pave ne network structure yakasimba. Network structure inogona kufukidza zvimwe zvinhu zvisina kuchena zvakaita se solid particles nemadonhwe emafuta, saka ine simba rakanaka rekurapa mvura yakasviba ine mhando dzakasiyana dzetsvina, kunyanya pakugara pamwe chete kwemafuta nemvura.
Panguva imwe chete, musanganiswa wePAC nePAM unewo zvikanganiso. Mvura iri muflocculate yakagadzirwa yakakwira, uye chimiro chayo chemukati chakasimba chinoita kuti pave nezvinodiwa zvakanyanya zvekurapa kwechipiri. Nokudaro, kukura kwakawedzerwa kwePAC pamwe chete nePAM kuchiri kusangana nematambudziko nematambudziko.
Nguva yekutumira: Gumiguru-09-2021