Kugwiritsa ntchito bwino kwambiri reverse osmosis nembanemba pazachimbudzi

Ukadaulo wolekanitsa wa membrane wa RO

Ukadaulo wolekanitsa wa membrane wa RO umagwiritsa ntchito kusinthasintha kwapakatikati pa nembanemba ngati mphamvu yoyendetsa. Mamolekyu ang'onoang'ono, monga mamolekyu amadzi, amagonjetsa mphamvu ya osmotic kuti idutse mumtanda wa RO, motero kuwalekanitsa ndi zonyansa. Kuthamanga kwa opaleshoni nthawi zambiri kumakhala pakati pa 1.5 ndi 10.5 MPa, ndipo dongosololi limatha kusunga mamolekyu ang'onoang'ono a 1 mpaka 10A.

Pochiza madzi, RO, monga chida chachikulu, imatha kuchotsa zoposa 97% ya zinthu zomwe zimasungunuka, 99% ya zinthu zamoyo zomwe zimakhala ndi mamolekyu olemera a 300 kapena pamwamba, kuposa 99% ya particles zosiyanasiyana kuphatikizapo mabakiteriya, ndi 95% ya SiO2 m'madzi.

Malo akulu kwambiri ogwiritsira ntchito m'nyumba zopangira ma membrane osmosis amakhalabe ndi madzi akulu ophikira, ndikutsatiridwa ndi misika yosiyanasiyana yamadzi am'mafakitale ndi madzi akumwa. Mapulogalamu a Membrane afikanso pamlingo waukulu m'makampani amagetsi, semiconductor, mankhwala, mankhwala, chakudya, zakumwa, mowa, mankhwala, chitetezo cha chilengedwe, zitsulo, ndi nsalu. Zomwe zitha kugwiritsidwa ntchito m'tsogolomu zikuphatikiza kuyeretsa madzi otayira pamadzi ozizira opangira magetsi, kuchotsa mchere wambiri m'madzi am'nyanja, kuchotsa mchere wamadzi amchere, komanso kukonza madzi otayira m'matauni ndi mafakitale.

Kugwiritsa ntchito nembanemba ya RO muzachimbudzi

1Kugwiritsa ntchito m'madzi amchere amchere wambiri

(1) Chithandizo champhamvu chamadzi otayira amchere, omwe amaimiridwa ndi madzi am'migodi, amakhala ndi mchere wambiri, makamaka kutuluka kwamadzi apansi panthaka, okhala ndi mchere wambiri wopitilira 1000 mg/L. Ma organic particles a SS omwe ali ndi kuchuluka kwa Ca2+Mg2+K+, Cl-, SO42-, HCO3 ndi HCO3- ndi osachepera 1.5 mg/L. Kwa madera amigodi omwe ali ndi vuto lalikulu lamadzi, kugwiritsa ntchito ukadaulo wa reverse osmosis pochiza kwambiri kupanga ndi madzi apanyumba kwalimbikitsidwa kwambiri.

Kugwiritsa ntchito madzi amchere monga pretreatment agent, flocculation, sedimentation, ndi kusefera mwachangu adawonjezeredwa kuti achotse ma SSS ambiri m'madzi, zomwe zidapangitsa kuti reverse osmosis inlet turbidity zosakwana 1 NTU. Pambuyo pa chithandizo cha reverse osmosis, chiwopsezo chochotsa matope chinayandikira 100%, ndikuchotsa mchere wa 96%.

(2) Kuchiza kwa Metallurgical madzi oipa

Makampani opanga zitsulo, omwe amagwiritsa ntchito zinthu zambiri, amagwiritsa ntchito madzi ambiri komanso owononga kwambiri, amawerengera 14% ya madzi onse a China. Zitsulo zonyansa zamakampani zimagwiritsidwa ntchito kwambiri pamakampani opanga zitsulo. Madzi otayira amakhala ndi zovuta zambiri ndipo amasinthasintha mosiyanasiyana mumitundu yosiyanasiyana, makamaka kuchuluka kwa Ca2+, Mg2+, Fe2+, Mn2+, SO42-, F, ndi SiO2. Kulephera kuchotsatu zotulutsa zachitsulo zapamwamba zomwe zili pa nembanemba ya reverse osmosis kungayambitse kuipitsa kwakukulu kwachilengedwe.

Pamadzi otayira kuchokera kufakitale yachitsulo yomwe imathandizidwanso ndimankhwala achiwiri am'thupi, kutulutsa mpweya kumachitika koyamba mu tanki ya aeration kuti oxidize Fe2+ mpaka Fe3+. Panthawi imodzimodziyo, NaClO imawonjezedwa kuti ipititse patsogolo mphamvu ya okosijeni ya Fe2+ ndi mphamvu ya bakiteriya. Mkaka wa laimu umawonjezeredwa kuti musinthe pH, ndikutsatiridwa ndi flocculation ndi PAM ndi PAC. Sedimentation, kusefa mwachangu, ndi activated carbon adsorption ndiye amagwiritsidwa ntchito kuchotsa zinthu zachilengedwe, ma chlorine otsalira, ndi ayoni azitsulo zolemera. Pambuyo pa chithandizo cha UF, madzi otayira amawathira ndi chochepetsera. Ma Scale inhibitors ndi asidi amalowa mu RO system.

2 Kugwiritsa ntchito pochiza madzi oyipa achilengedwe a refractory

Kusindikiza ndi utoto wamadzi onyansa ndi mankhwala amadzi onyansa a petrochemical, kusindikiza ndi kudaya madzi oyipa, kuwonjezera pa utoto wambiri, slurries, mchere wachilengedwe, ma acid ndi ma alkali, ali ndi mawonekedwe mpaka 4000 nthawi yamtundu, kuchuluka kwa madzi, kuchuluka kwa zoipitsa organic, mtundu wamadzi wosiyanasiyana, ndi zina zambiri. Kuwonongeka kwa zinyalala, ndipo zoipitsa makamaka zimachokera ku kuwonongeka kwa zinyalala ndi mvula. Ubwino wa madzi ndi wovuta, ndipo COD ndi yapamwamba kwambiri kuposa ya zimbudzi zam'tawuni. Kuphatikiza apo, leachate ilinso ndi ayoni osiyanasiyana achitsulo, monga Fe2+, Cd2+, Cr3+, Cu2+, Zn2+, ndi ndende ya Fe2+ pa nthawi yowotcha.

Ngakhale kuti njira ya A/O ya magawo awiri a biochemical mankhwala yakhala ikugwiritsidwa ntchito kwambiri pakuwonongeka kwa zinthu zamoyo ndi kuchotsedwa kwa leachate yakutayirako, kutayirako sikukhazikika. Chifukwa chake, potengera kusefera kwamakina, kugwiritsa ntchito ma membrane a ultrafiltration ndi A/O kupanga njira ya MBR kwathandizira kuchotsedwa kwa zinthu zakuthupi mu leachate yamtunda.

Madzi amadzimadzi, atatha kupatukana ndi matope a ultrafiltration, amalowa mu nanofiltration (NFN) system. NF imatha kulekanitsa bwino zinthu zachilengedwe ndi molekyulu yolemera 200m mpaka 2000m ndipo ingagwiritsidwenso ntchito kulekanitsa zinthu zamtengo wapatali zochokera kumadzi opangidwa ndi MBR. Kafukufuku anachitidwa pa katundu zitsulo ayoni ndi MBR+NF+RO atatu wosanjikiza nembanemba mankhwala ndondomeko gulu. Zotsatira zikuwonetsa kuti ndondomekoyi ikugwira ntchito bwino, ndipo mtundu wa nyansiyo umakwaniritsa miyezo yoyendetsera kuipitsidwa kwa malo otayirako zinyalala zamatauni.

Panthawi yogwira ntchito, ngati madzi otayira a NF akukwaniritsa zofunikira, akhoza kutulutsidwa mwachindunji. Kupanda kutero, itha kuthandizidwanso pogwiritsa ntchito dongosolo ili la RO. Kafukufuku wokhudza njira ya Ar/O-MBR+NF+RO yochizira zotayira zotayiramo zasonyeza kuti kuwonjezera kwa activated carbon ku A/O reactor sikungowonjezera kuchotsedwa kwa zinthu zamoyo ndi zitsulo zolemera komanso kumachepetsa kuipitsidwa kwa nembanemba.

3 Kugwiritsa ntchito pamankhwala apamwamba obwezeretsanso

China yakhazikitsanso zomera zazikulu zamadzi zobwezerezedwanso ku Beijing, Tianjin, Hebei, Shandong ndi malo ena. Pakati pawo, malo angapo obwezeretsanso madzi obwezeretsanso madzi amagwiritsa ntchito "UF (MF) + RO" pawiri nembanemba kuti athetse mitundu iwiri ya zinyalala zam'tawuni m'madzi osaphika, ndikupanga madzi obwezerezedwanso, omwe amagwiritsidwa ntchito ngati gawo lamadzi opangira magetsi otenthetsera ndipo gawo lina limagwiritsidwa ntchito ngati mitsinje yowoneka bwino komanso madzi am'nyumba osiyanasiyana.

Malo oyeretsera madzi oipa a m'deralo amagwiritsa ntchito MBR yophatikizidwa ndi reverse osmosis kuti ayeretse madzi otayidwa a tauni kuti agwiritsidwenso ntchito. Madzi apeza milingo ya TOC

Pofuna kupititsa patsogolo ubwino waukadaulo wa reverse osmosis, kuchepetsa kuipitsidwa kwa membrane, komanso kutsika mtengo wothira madzi, kampani yathu yapanga njira zingapo zophatikizidwira zogwirizana ndi mawonekedwe amadzi. Njira zamakono zochizira madzi, monga coagulation ndi sedimentation, high-concentration, ndi kusefedwa kwapamwamba, zimagwiritsidwa ntchito kuchotsa SS. NaClO, mkaka wa laimu, ndi zosefera mchenga wa manganese zimagwiritsidwa ntchito kuchepetsa RO, mchere wa manganese, mchere wa calcium, ndi mchere wa silika mu Sargassum aeration ndi oxidation system. O3 makutidwe ndi okosijeni amagwiritsidwa ntchito pochiza recalcitrant A/O organic matter. MBR, UF, ndi NF amagwiritsidwa ntchito kusunga ma SS abwino ndi mamolekyu ang'onoang'ono. Ma ion apamwamba kwambiri amaphatikizidwa ndi machitidwe a UF + RO kapena MBR + RO awiri-membrane, kapena ngakhale MBR + NF + RO katatu-membrane machitidwe, kuwonetsetsa kuti dongosolo lokhazikika likugwira ntchito ndikuwonetsetsa kuti RO chithandizo cha recalcitrant organic wastewater.

Malingaliro a Kampani

"HID Membrane" imayang'ana paukadaulo wolekanitsa wa membrane ndi chitukuko cha zinthu za membrane, kupatsa makasitomala akatswiri olekanitsa amadzimadzi, njira zothetsera ndende ya membrane ndi zida zonse zamakina kuchokera kukupanga nembanemba, kafukufuku wamagwiritsidwe ntchito ndi chitukuko, kufunsira kwa projekiti, kuphatikiza machitidwe kuzinthu zaukadaulo zophatikizika.

Mtunduwu wadzipereka kuukadaulo wopangira madzi otayira m'mafakitale komanso kugwiritsa ntchito zinthu za membrane kwazaka zopitilira 16. Yachita upainiya woyamba padziko lonse lapansi m'magawo angapo ogwiritsira ntchito ma membrane am'mbuyo a osmosis, adapeza zambiri zogwiritsa ntchito, ndipo adapeza ma patent ambiri ndi ma patent amitundu yofananira nawo, kudzaza mipata yambiri kunyumba ndi kunja, ndipo ali ndi mbiri yabwino pamsika.