Ma ogtahay? Marka laga soo tago qashinka u baahan in la kala saaro, waxaa sidoo kale loo baahan yahay in la kala saaro qashinka lagu shubo meelaha qashinka lagu shubo.
Sida ku cad astaamaha daadinta qashinka, waxaa si fudud loogu qaybin karaa: daadinta goobta wareejinta qashinka, daadinta qashinka jikada, daadinta qashinka lagu shubo qashinka, iyo daadinta qashinka lagu shubo warshad gubta.
Waa maxay astaamaha afarta nooc ee daadinta qashinka?
Astaamaha saldhigga wareejinta ee daadinta:
1. Waxaa jira ilo badan oo ugu muhiimsan oo biyaha wasakhda ah: inta badan biyaha wasakhda ah ee guryaha, biyaha wasakhda ah ee la daadiyo, iyo biyaha qashinka lagu shubo.
2. Maadaama ay kooban tahay waqtiga uu qashinka ku jiro xarunta qashinka lagu qaado, wax soo saarka daadinta ayaa yar.
3.Isu-ururinta wasakhda ku jirta xarunta wareejinta ayaa ka hooseysa tan wasakhda kale, tirada wasakhda ku jirta COD-guna waa qiyaastii 5000 ~ 30000mg/L.
Astaamaha ugu muhiimsan ee daadinta qashinka waa:
①Waxaa jira noocyo badan oo wasakhowga dabiiciga ah, tayada biyuhuna waa mid adag (waxaa ku jira daraasiin walxo dabiici ah)
②Isu-ururinta sare ee wasakhowga iyo isbeddellada ballaaran (fiirsashada BOD iyo COD ee bilowga ah ayaa ah tan ugu sarreysa, ilaa tobanaan kun oo milligram halkii litir, qiimaha pH wuxuu gaarayaa ama ka hooseeyaa 7, B/C wuxuu u dhexeeyaa 0.5-0.6, sifooyinka bayoolajiguna waa wanaagsan yihiin), guud ahaan marka la hadlayo, saamiga COD, BOD, BOD/COD wuu yaraanayaa marka "da'da" qashinka la dhigo, alkalinity-guna wuu kordhaa.
③Tayada iyo tirada biyuhu aad bay u kala duwan yihiin: tirada biyuhu aad bay u kala duwan yihiin xilliyada (xilliga roobku si cad ayuu uga weyn yahay xilliga qalalan); qaab-dhismeedka iyo isku-darka wasakhda ayaa sidoo kale isbeddela xilliyada; qaab-dhismeedka iyo isku-darka wasakhda ayaa isbeddela wakhtiga qashinka la shubo.
Astaamaha ugu muhiimsan ee daadinta qashinka lagu shubo ee warshadaha gubashada waa:
①Xooga sare ee COD, BOD, iyo ammonia nitrogen (COD wuxuu gaari karaa 40,000 ~ 80,000)
②Waqtiga halsano waa ka dheer yahay kan saldhigga wareejinta.
Astaamaha ugu muhiimsan ee daadinta qashinka jikada:
①Adkaha sare ee laalaada: Daadinta kala duwan waxay leeyihiin saamiyo kala duwan oo ah adkaha laalaada ee xaaladda la dejin karo iyo xaaladda kolloidal, oo u dhexeeya 60,000 ilaa 120,000 mg/L, oo leh kala firdhis sare oo ay adag tahay in la kala saaro;
②Saliid badan: inta badan saliidaha xoolaha iyo kuwa khudradda, ilaa 3000mg/L ka dib daaweynta kahor
③Kalluunka cod-ka oo sarreeya, oo badanaa si fudud loo burburin karo, ilaa 40,000 ilaa 150,000 mg/L;
④pH hooseeya (badanaa qiyaastii 3);⑤milix badan.
Kusoo dhawoow inaad la tashato alaabtayada——KIIMIKOOYINKA NAADIFKA AH
cr.goole
Waqtiga boostada: Maarso-09-2023