Kudziwa ndi Kugwiritsa Ntchito Kuyeretsa Kwachimbudzi

I. Kodi sewage ndi chiyani?

Madzi a m'madzi amatanthauza madzi otulutsidwa kuchokera kuzinthu zopanga ndi zogwirira ntchito. Anthu amagwiritsa ntchito madzi ochuluka pamoyo watsiku ndi tsiku ndi ntchito zopanga, ndipo madziwa nthawi zambiri amakhala oipitsidwa mosiyanasiyana. Madzi oipitsidwa amatchedwa sewege.

II.Kodi kuchiza zimbudzi?

Kuyeretsa zimbudzi kumaphatikizapo kugwiritsa ntchito umisiri ndi njira zosiyanasiyana zolekanitsira, kuchotsa, ndi kubwezeretsanso zinthu zoipitsa m’chimbudzi kapena kuzisandutsa zinthu zopanda vuto, motero amayeretsa madziwo.

III.Kugwiritsa ntchito mankhwala achilengedwe m'zimbudzi?

Tizilombo toyambitsa matenda a zinyalala amagwiritsa ntchito tizilombo moyo njira bwino kuchotsa sungunuka organic zinthu ndi insoluble organic zinthu m'madzi oipa, kuyeretsa madzi.

IV.Kufotokozera za mabakiteriya a aerobic ndi anaerobic?

Mabakiteriya a Aerobic: Mabakiteriya omwe amafunikira kukhalapo kwa okosijeni waulere kapena samachotsedwa pakakhala mpweya waulere. Anaerobic bacteria: Mabakiteriya omwe safuna mpweya waulere kapena samachotsedwa popanda mpweya waulere.

V.Ubale pakati pa kutentha kwa madzi ndi ntchito?

Kutentha kwa madzi kumakhudza kwambiri ntchito ya akasinja aeration. M'malo osungiramo zimbudzi, kutentha kwa madzi kumasintha pang'onopang'ono ndi nyengo ndipo sikumasintha pakangopita tsiku limodzi. Ngati kusintha kwakukulu kukuwonekera mkati mwa tsiku, kuyendera kuyenera kuchitidwa kuti muwone ngati madzi akuzizira amalowa m'mafakitale. Pamene kutentha kwa madzi pachaka ndi 8-30 ℃, mphamvu ya chithandizo cha thanki ya aeration imachepa pamene ikugwira ntchito pansi pa 8 ℃, ndipo kuchotsedwa kwa BOD5 nthawi zambiri kumakhala pansi pa 80%.

VI. Mankhwala omwe amagwiritsidwa ntchito pochiza zimbudzi?

Zidulo: sulfuric acid, hydrochloric acid, oxalic acid.

Alkalis: laimu, sodium hydroxide (caustic soda).

Ma Flocculants: Polyacrylamide.

Coagulants: Poly Aluminium Chloride, aluminium sulphate, ferric chloride.

Oxidants: hydrogen peroxide, sodium hypochlorite.

Kuchepetsa othandizira: sodium metabisulfite, sodium sulfide, sodium bisulfite.

Othandizira: Ammonia nitrogen remover, phosphorous remover, heavy metal scavenger, decolorizer, defoamer.

Zothandizira zina: Scale inhibitor, demulsifier, citric acid.