Kuziva uye Kushandiswa kweSewage Treatment

I.Sewage chii?

Sewage (Sewage) zvinoreva mvura inoburitswa mukugadzira nekuita mabasa ekurarama. Vanhu vanoshandisa mvura yakawanda muhupenyu hwezuva nezuva uye mabasa ekugadzira, uye mvura iyi inowanzosvibiswa kune zvakasiyana-siyana. Mvura ine tsvina inonzi sewage.

II.Maitirwo ekurapa tsvina?

Kucheneswa kwetsvina kunosanganisira kushandisa michina uye nzira dzakasiyana-siyana kuparadzanisa, kubvisa, uye kushandisazve zvinosvibisa mutsvina kana kuti kuzvishandura kuita zvinhu zvisingakuvadzi, nokudaro kuchenesa mvura.

III.Kushandiswa kwekurapa kwebiochemical mumvura yetsvina?

Biochemical kurapwa kwetsvina inoshandisa microbial hupenyu maitiro kuti ibvise zvinonyungudika organic zvinhu uye zvimwe zvisinganyunguriki organic zvinhu kubva mumarara, kuchenesa mvura.

IV. Tsanangudzo ye aerobic uye anaerobic mabhakitiriya?

Aerobic bacteria: Mabhakitiriya anoda kuvepo kweokisijeni yemahara kana kuti haana kubviswa pamberi peiyo okisijeni yemahara. Anaerobic bacteria: Utachiona husingadi okisijeni yemahara kana kuti husina kubviswa kana pasina okisijeni yemahara.

V.Relationship pakati pekushisa kwemvura uye kushanda?

Tembiricha yemvura inokanganisa zvakanyanya kushanda kweaeration matangi. Muchigadzirwa chekuchenesa tsvina, tembiricha yemvura inoshanduka zvishoma nezvishoma nemwaka uye haishanduke mukati mezuva. Kana shanduko huru ikaonekwa mukati mezuva, ongororo inofanira kuitwa yekutarisa maindasitiri ekutonhodza mvura kupinda. Kana tembiricha yemvura yegore negore iri pakati pe8-30 ℃, kushanda zvakanaka kwetangi reaeration kunodzikira kana uchishanda pasi pe8 ℃, uye chiyero chekubvisa BOD5 kazhinji chiri pasi pe80%.

VI.Makemikari akajairika anoshandiswa mukurapa kwetsvina?

Acids: sulfuric acid, hydrochloric acid, oxalic acid.

Alkalis: Lime, sodium hydroxide (caustic soda).

Flocculants: Polyacrylamide.

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

Oxidants: Hydrogen peroxide, sodium hypochlorite.

Kuderedza vamiririri: Sodium metabisulfite, sodium sulfide, sodium bisulfite.

Vanoshanda vamiririri: Ammonia nitrogen remover, phosphorus remover, heavy metal scavenger, decolorizer, defoamer.

Mamwe maajenti: Scale inhibitor, demulsifier, citric acid.