Chitsanzo cha Malo Oyeretsera Madzi a m'madzi m'chigawo cha Xi'an, m'chigawo cha Shaanxi

II. Ukadaulo wa Njira ndi Miyezo ya Utsi
Malowa amagwiritsa ntchito matekinoloje apamwamba oyeretsa madzi akuwonongeka, makamaka pogwiritsa ntchito njira ya Sequencing Batch Reactor (SBR) yoyambitsa matope. Njirayi imapereka chithandizo chamankhwala, kusinthasintha kwa magwiridwe antchito, komanso kugwiritsa ntchito mphamvu pang'ono, zomwe zimathandiza kuchotsa bwino zinthu za organic, nayitrogeni, phosphorous, ndi zowononga zina. Madzi anyansi omwe amathiridwa amagwirizana ndi zofunikira za Giredi A zofotokozedwa mu "Discharge Standard of Pollutants for Municipal Waste Water Treatment Plants" (GB18918-2002). Madzi otayidwa ndi omveka bwino, osanunkhiza, ndipo amakwaniritsa zofunikira zonse zachilengedwe, zomwe zimalola kumasulidwa mwachindunji m'madzi achilengedwe kapena kugwiritsidwanso ntchito poyang'ana malo akumatauni komanso mawonekedwe owoneka bwino amadzi.

III. Zopindulitsa Zachilengedwe ndi Zopereka Pagulu
Kuchita bwino kwa malo oyeretsera madzi oipawa kwasintha kwambiri malo okhala m'matauni ku Xi'an. Zimagwira ntchito yofunika kwambiri poletsa kuwononga chilengedwe, kuteteza madzi abwino a m'mphepete mwa mitsinje ya m'deralo, komanso kusunga chilengedwe. Posamalira bwino madzi otayidwa a tauniyi, malowa achepetsa kuipitsidwa kwa mitsinje ndi nyanja, kukulitsa malo okhala m'madzi, ndikuthandizira kukonzanso chilengedwe. Kuphatikiza apo, kampaniyo yasintha momwe mzindawu ukuyendera bwino, kukopa mabizinesi owonjezera ndikuthandizira chitukuko chokhazikika chachuma m'chigawo.