Polyacrylamide(PAM) ndeye organic polymer flocculant inoshandiswa zvakanyanya mumunda wekurapa mvura. The unyanzvi zviratidzo PAM zvinosanganisira ionicity, hydrolysis dhigirii, molecular uremu, etc. Izvi zviratidzo zvine simba guru pane flocculation kuitika kwemvura kurapwa. Kunzwisisa zviratidzo izvi kuchakubatsira iwe nekukurumidza kusarudza PAM zvigadzirwa zvine zvirevo zvakakodzera.
Lonicity
Lonicity inoreva kana PAM molecular chain inotakura zvakanaka kana zvakaipa mhosva. Iyo dhigirii yeionization ine yakakosha kukanganisa pane flocculation mhedzisiro yekurapa kwemvura. Kazhinji kutaura, iyo yakakwirira iyo ionicity, zviri nani iyo flocculation effect. Izvi zvinodaro nekuti iyo ionic PAM yemamorekuru cheni inotakura machaji akawanda uye inogona kutora zvirinani zvimedu zvakamiswa, zvichiita kuti vaungane pamwechete kuti vaumbe flocs hombe.
Polyacrylamide inonyanya kukamurwa kuita anionic (APAM), cationic (CPAM), uye isiri-ionic (NPAM) mhando zvichienderana neiyo ionicity. Aya matatu marudzi ePAM ane akasiyana mhedzisiro. Mumashandisirwo anoshanda, iyo ionicity yakakodzera inoda kusarudzwa zvichibva pazvinhu zvakaita se pH kukosha kwemvura yakagadziriswa, electronegativity, uye kusangana kwezvimedu zvakamiswa. Semuenzaniso, kune acidic wastewater, PAM ine yakakwirira cationicity inofanira kusarudzwa; kune alkaline wastewater, PAM ine anionicity yakakwirira inofanira kusarudzwa. Uye zvakare, kuti uwane iri nani flocculation mhedzisiro, inogona zvakare kuwanikwa nekusanganisa PAM neakasiyana ionic madhigirii.
Dhigirii reHydrolysis (yeAPAM)
Iyo dhigirii ye hydrolysis yePAM inoreva dhigirii re hydrolysis yeamide mapoka pane ayo mamorekuru cheni. Iyo dhigirii yehydrolysis inogona kuiswa mune yakaderera, yepakati, uye yakakwirira madhigirii ehydrolysis. PAM ine madhigirii akasiyana ehydrolysis ine zvivakwa zvakasiyana uye mashandisiro.
PAM ine yakaderera dhigirii ye hydrolysis inonyanya kushandiswa kukora uye kudzikamisa. Inowedzera viscosity yemhinduro, ichibvumira zvidimbu zvakamiswa kuti zvipararire zviri nani. Inoshandiswa zvakanyanya mukuchera zvinwiwa, machira, uye indasitiri yechikafu.
PAM ine yepakati dhigirii yehydrolysis ine yakanaka flocculation mhedzisiro uye yakakodzera kune akasiyana emhando yemvura marapirwo. Inogona kuunganidza zvimedu zvakamiswa kuita flocs hombe kuburikidza neadsorption uye bhiriji, nekudaro kuwana nekukurumidza kugadzirisa. Inoshandiswa zvakanyanya muminda yekugadziriswa kwesuweji yemumaguta, kurapwa kwemvura yetsvina mumaindasitiri, uye kupera kwemvura.
PAM ine yakakwira dhigirii ye hydrolysis ine yakasimba adsorption uye decolorization kugona uye inowanzoshandiswa mukudhinda uye kudhaya marara emarara uye mamwe minda. Inogona kunyatso kushambadza uye kubvisa zvinhu zvinokuvadza mumvura yetsvina, senge dhayi, simbi inorema, uye organic zvinhu, kuburikidza nemachaji uye adsorption mapoka pane polymer cheni.
Molecular Weight
Iyo molecular huremu hwePAM inoreva kureba kweketani yayo yemamorekuru. Kazhinji, iyo yakakwira huremu hwemamorekuru, ndizvo zviri nani iyo flocculation mhedzisiro yePAM. Izvi zvinodaro nekuti yakakwira molecular uremu PAM inogona zvirinani adsorb yakamiswa zvimedu, zvichiita kuti vaungane pamwechete kuti vaumbe flocs hombe. Panguva imwecheteyo, yakakwira molecular uremu PAM ine zvirinani kubatanidza uye bhiriji kugona, izvo zvinogona kuvandudza simba uye kugadzikana kweiyo floc.
Mumashandisirwo anoshanda, huremu hwemamorekuru hwePAM hunoshandiswa kuchenesa tsvina yemudhorobha uye kurapwa kwemvura yetsvina mumaindasitiri kunoda zvinodiwa zvepamusoro, kazhinji kubva kumamirioni kusvika kumakumi emamiriyoni. Izvo zvinorema huremu zvinodiwa zvePAM zvinoshandiswa kurapa sludge dehydration zvakadzikira, kazhinji kubva kumamiriyoni kusvika makumi emamiriyoni.
Mukupedzisa, zviratidzo zvakadai se ionicity, hydrolysis degree, uye molecular weight zvinhu zvinokosha zvinokanganisa kushandiswa kwePAM mukurapwa kwemvura. Paunenge uchisarudza PAM zvigadzirwa, iwe unofanirwa kunyatso funga nezvemhando yemvura uye sarudza zvinoenderana nePAM tekinoroji zviratidzo kuti uwane yakanakisa flocculation effect, kuvandudza kushanda, uye kunaka kwekurapwa kwemvura.
Nguva yekutumira: Jun-28-2024