Cationic polyacrylamide yekurapa-munyu tsvina yemvura

Mvura yakasviba ine munyu wakakwira inoreva mvura yetsvina ine organic matter uye inokwana 3.5% (mass concentration) yakazara yakanyungudika solids (TDS). Mhando yemvura yakasviba iyi inobva kune zvakasiyana-siyana. Chekutanga, mumakemikari, mishonga, peturu, kugadzira mapepa, kugadzirwa kwemukaka, kugadzika kwechikafu uye mamwe maitiro ekugadzira maindasitiri, mvura zhinji inoraswa ichaburitswa. Mvura haina kungova nehuwandu hwehuwandu hwehuwandu hwehutachiona hwehutachiona, asiwo Inoperekedzwa nehuwandu hwe calcium, sodium, chlorine, sulfate uye mamwe ions; chechipiri, kuitira kushandisa zvizere zviwanikwa zvemvura, maguta mazhinji emumhenderekedzo yegungwa anoshandisa zvakananga mvura yegungwa semvura yekugadzira maindasitiri kana mvura inotonhorera, uye dzimwe nzvimbo dzinoshandisa mvura yegungwa pakurwisa moto, kugezesa zvimbuzi nemigwagwa, Kunyange zvazvo chikamu ichi chetsvina chisina yakawanda yezvinhu zvine chepfu, yakaoma kurapa nekuda kwehuwandu hwemvura yakakura uye yakawanda yemunyu. Iyo organic matter ye-high-salt organic wastewater inosiyana zvakanyanya mumhando uye makemikari zvinhu zveiyo organic matter maererano nekugadzirwa kwemaitiro, asi munyu urimo kazhinji Cl-, SO42-, Na+, Ca2+ uye mamwe munyu. Kunyange zvazvo maion aya ari kudya kwakakosha pakukura kwema microorganisms, anoita basa rinokosha mukusimudzira maitiro ee enzyme, kuchengetedza membrane kuenzanisa uye kudzora osmotic pressure panguva yekukura kwema microorganisms, asi kana kusanganiswa kwemaion aya kwakanyanyisa, inodzivisa uye inhibit microorganisms. Toxic effect. Munyu wepamusoro wemunyu, high osmotic pressure, uye kupera simba kwemasero e microbial mumvura yakasvibiswa yemunyu inokonzera sero protoplasm kuparadzaniswa; kunaya kwemunyu kunoderedza dehydrogenase basa; high chloride ion inotyisa kune mabhakitiriya; Madhaka ari nyore kuyangarara kumusoro uye kumhanya, nekudaro kukanganisa zvakanyanya kucheneswa kweiyo biological treatment system.

Mvura yakasviba ine munyu wakakwira ine magetsi ekufambisa, saka inogona kuburitsa ikozvino yakasimba pakati peyin neyang mazinga ne electrolysis kukonzeresa redox kuita kwechepfu uye zvinokuvadza zvinhu kubvisa zvinosvibisa mumvura. Electrolysis inogona kunyatso kudzikisa COD mumvura yetsvina. , Iine simba rinogadziriswa kune tsvina uye yakanaka yekubvisa mhedzisiro, asi iyo yakashata ndeyekuti mutengo wekushandisa wakakwira. Iyo electrolytic flocculation nzira inoshandiswa kurapa yakakwira salinity organic tsvina yakaburitswa kubva kushellac synthetic resin kugadzira process, iyo isingagone chete zvinobudirira kuderedza COD mumvura yetsvina, kuwedzera kujeka, asiwo kuve nekubvisa kwakanyanya kweBOD, TP uye. TN.

Kiyi cationic polyacrylamide yekutsinhana nzira iri mune ion exchange resin, inova yakakwira-molecular polymer ine inoshanda mapoka, network chimiro uye insolubility. Ioni dzesimbi dziri mairi dzakachekwa uye dzinotsiviwa. Iyo ion yekutsinhana nzira inogona kushandiswa se pretreatment maitiro ekubvisa akasiyana simbi ions uye kuzadzisa chinangwa chekuita desalination. Chainokanganisa ndechekuti iyo yakasimba yakaturikwa nyaya mumvura ine tsvina inovhara resin uye kuita kuti cationic polyacrylamide exchange resin isashande. Tang Shuhe et al. yakashandiswa ion exchange resin kurapa Cr-ine tsvina yemvura, uye kuwanda kweCr mumvura yakasvibiswa kwakaderera kubva ku1540 mg / L pakutanga kusvika ku0.5 mg / L mushure mekurapa, kusangana nemutemo wekubudiswa kwenyika.


Nguva yekutumira: Mar-08-2022
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