Unpowered domestic dej phwj kho khoom siv (ecological tank)

Cov dej dub ua ntej nkag mus rau pem hauv ntej-kawg septic tank rau kev kho ua ntej, qhov twg cov khib nyiab thiab cov khib nyiab cuam tshuam, thiab cov supernatant nkag mus rau hauv cov khoom siv biochemical. Nws tso siab rau cov kab mob hauv cov dej thiab lub txaj txav chaw tom qab lub membrane yog dai rau kev kho mob, hydrolysis thiab acidification degrade organic teeb meem, txo COD, thiab ua ammonification. Tom qab kev kho biochemical, cov dej phwj tuaj mus rau hauv seem kho lub cev ntawm lub backend. Cov khoom siv lim dej tau xaiv tau tsom mus rau adsorption ntawm ammonia nitrogen, cuam tshuam cov khib nyiab tshem tawm, tua Escherichia coli, thiab cov ntaub ntawv txhawb nqa, uas tuaj yeem ua kom muaj txiaj ntsig zoo ntawm COD thiab ammonia nitrogen hauv cov dej ntws. Raws li kev ua tau raws li cov qauv kev siv dej hauv av, cov kev xav tau siab dua tuaj yeem ua tiav. Lub backend tuaj yeem nruab nrog lub tank dej huv ntxiv los sau thiab kho cov dej hauv qab, ua kom tau raws li qhov yuav tsum tau siv cov peev txheej hauv cov chaw nyob deb nroog.