Xa usebenzisaukubuyisela inwebu ye-osmosisukunyanga amanzi akrwada, izinga lokubuyisela inkqubo ye-membrane luphawu olubalulekileyo lokusebenza, oluhlala lufumana ingqalelo enkulu. Izinga eliphezulu lokubuyisela libonisa umthamo oqinileyo wokukhupha amanzi. Lithini izinga lokubuyisela inkqubo ye-osmosis membrane? Oku kulandelayo yingcaciso eneenkcukacha nguHIDE RO MEMBRANE:
1. Yintoni isantya sokubuyisela inkqubo ye-membrane ye-osmosis ebuyela emuva?
Izinga lokubuyisela libhekiselele kwipesenti yamanzi anefuthe kwinkqubo ye-membrane eguqulwa ibe yimveliso yamanzi okanye i-permeates, egqitywe yi-pretreatment echaphazela umgangatho wamanzi kunye neemfuno zamanzi.
2. Ireyithi yokubuyisela i-algorithm ye-reverse osmosis membrane system
Izinga lokubuyiselwa kwezinto eziqhelekileyo ze-single-branched reverse osmosis membrane zixhomekeke kumgangatho wamanzi anefuthe, kwaye izinga lokubuyisela liphakathi kwe-12% -50%. Izinga lokubuyisela iinkqubo ze-membrane ze-osmosis eziqhelekileyo nazo ziyahluka ukusuka kwi-30% ukuya kwi-90% ngokuxhomekeke kwisikali senkqubo kunye nomgangatho wamanzi akrwada.
Ifomyula yokubala ireyithi yokubuyisela imeko ngolu hlobo lulandelayo:
R%=Fp/Ff×100%
Kwifomula:
Ff ---- buyisela umva inwebu ye-osmosis (inkqubo) isantya sokuhamba kwamanzi okungena ngaphakathi (m³/h)
Fp ---- Umlinganiselo wokuhamba kwamanzi we-reverse osmosis membrane (inkqubo) (m³/h)
R ---- Izinga loBuyiselo lokubuyisela umva inwebu ye-osmosis (inkqubo)
Ngokumisela izinga lokubuyisela inkqubo ye-membrane ye-osmosis ebuyela umva, ukuxinwa okuphindaphindiweyo komxholo wetyuwa wamanzi akrwada kwindlela ye-osmosis engasemva ingabalwa ngokuqikelelwayo. I-concentration multiple ibhekiselele kugxininiso lwento egxininiswe kumanzi agxininisiweyo kwi-reverse osmosis membrane system kunye nomxholo wento enye kumanzi okutya. Umlinganiselo ukwabizwa ngokuba yiconcentration factor ye-reverse osmosis system. Ukonyusa inqanaba loxinzelelo kunokunyusa izinga lokusetyenziswa kwamanzi, kodwa kuya kwandisa ubulukhuni bamanzi kwaye kubangele ukukala ngokulula. Ke ngoko, ukuqonda umba woxinaniso lwenkqubo kuluncedo kakhulu kuthi ukuba siqonde ukungcoliswa kunye nongcoliseko lommandla oxineneyo wamanzi.
Ifomyula yokubala yenkqubo yoxinaniso lwenkqubo imi ngolu hlobo lulandelayo:
CF=1/(1-R)
Apho: CF--imeko yoxinaniso
R ---- Izinga lokubuyisela inkqubo ye-osmosis ebuyela umva
Ingabonwa ukuba i-concentration factor yamanzi akrwada iyanda njengoko izinga lokubuyisela linyuka, kwaye xa izinga lokubuyisela lingaphezulu kwe-75%, ukunyuka kwendlela yoxinzelelo kuba ngokukhawuleza kwaye kubonakala ngakumbi.
3. Ngaba izinga lokubuyisela inkqubo ye-membrane ye-osmosis iphezulu kangangoko kunokwenzeka?
Okukhona uphezulu umlinganiselo wokubuyisela inkqubo, kokukhona ukukhutshelwa kwamanzi angaxinananga kangako, kodwa izinga eliphezulu lokubuyisela kwakhona liya kubangela ukuthotywa komgangatho wamanzi. Ukwandisa izinga lokubuyisela inkqubo kuya kwandisa ukuhlukana koxinzelelo kumacala omabini e-reverse osmosis membrane, okubangela ukwanda kwetyuwa kumanzi emveliso; ukunyuka kwezinga lokubuyisela kwakhona kuya kubangela ukuba uxinzelelo lokuqhuba kwe-net lwenkqubo lwehle, kwaye ekugqibeleni lukhokelele ekunciphiseni ukuveliswa kwamanzi kwenkqubo. Ukuveliswa kwamanzi kufuneka kwandise uxinzelelo lokusebenza kwenkqubo, okukhokelela ekunyukeni kweendleko zokusebenza kwenkqubo. Ngoko ke, izinga lokubuyisela kufuneka libekwe ngokwemiqathango yenkqubo ye-osmosis ye-reverse, kungekhona ephezulu engcono.
4. umda ophezulu wezinga lokubuyisela inkqubo ye-membrane ye-osmosis ye-reverse
Izinga lokubuyisela ayisiyiyo inwebu ye-osmosis ebuyela umva, kodwa sisiphumo sebhalansi yomyili wemveliso yeemfuno zomgangatho wamanzi kunye nobukhulu bokuhamba kwamanzi okugxininiswe. Umda ophezulu wezinga lokubuyisela unqunywe yimiba emibini: ukuthambekela kokunyuka kwamanzi akrwada kunye nokuthambekela kwe-polarization yoxinaniso kwi-membrane surface. Ngoko ke, ngaphambi kokuseta izinga lokubuyisela inkqubo, kuyimfuneko ukuqinisekisa ukuba i-salts ezingaxutywanga (ezifana ne-CaCO3, i-CaSO4, i-BaSO4, i-SrSO4, i-SiO2, njl.) ziya kukhwela phezu kwendawo ye-osmosis membrane. Xa imveliso ye-ion yetyuwa engenakunyibilika kwisisombululo inkulu kunemveliso yayo yokunyibilika, i-precipitate inokuthi ihlanjululwe kwisisombululo, kwaye izinga lokubuyisela elihambelana nokuxinwa okukhulu kwamanzi agxininisiweyo aqinisekisa ukuba akukho mvula ngumda ophezulu wesantya sokubuyisela inkqubo.
Ixesha lokuposa: Aug-20-2020