STP nini
Hari ubwoko bwinshi bw'imishinga yo gutunganya amazi yanduye yo mu ngo nto n'iziciriritse, imwe ifite igishushanyo mbonera gitwikiriye, indi ifite igishushanyo mbonera kiri hejuru y'ubutaka. Abatanga serivisi z'ibikoresho byo gutunganya amazi yanduye bakuru bafite imishinga itandukanye, uyu munsi turabagezaho isanduku yo gutunganya amazi yanduye yo mu cyaro iri hejuru y'ubutaka iherereye muri Jiangsu Ringshui, ifite ubushobozi bwo gutunganya toni 50 ku munsi.