Ma kahi o Longyan Sewage Treatment Plant ma Nanchuan, Chongqing, ua hoʻohana maikaʻi ʻia nā mea hana wai o Sinomeasure: pH meter, dissolved oxygen, turbidity meter, sludge concentration meter a me nā mea hana ʻē aʻe i hoʻohana maikaʻi ʻia i ke kaʻina hana hoʻomaʻemaʻe, e hoʻomaikaʻi nui i ka pololei o ka nānā ʻana i ka maikaʻi o ka wai.
