Huwandu uye kuumbwa kwetsvina inorasirwa marara zvinosiyana zvichienderana nemwaka nemamiriro ekunze ematsvina akasiyana. Zvisinei, hunhu hwawo hunosanganisira mhando dzakasiyana-siyana, huwandu hwakawanda hwezvinosvibisa, huwandu hwakawanda hweruvara, pamwe nehuwandu hwakawanda hweCOD neammonia. Nokudaro, tsvina inorasirwa marara imhando yemvura yakasviba isingarapwe nyore nyore nenzira dzechinyakare.

Nekushandira pamwe nekambani yekudzivirira zvakatipoteredza, kambani yedu yakaita tsvakiridzo yekuedza uye kugadzira tekinoroji kuti igadzirise matambudziko ane chekuita nekuchenesa tsvina yetsvina. Chirongwa chekuchenesa tsvina yetsvina yeHaining inyaya yakanaka kwazvo. Uchishandisa muchina wekusvina bhandi wakagadzirwa neHaiBar, huwandu hwakasimba hunogona kusvika pamusoro pe22% mushure mekumanikidzwa uye kupera mvura mumuviri. Muchina uyu wakarumbidzwa zvikuru nevatengi vedu.

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