Osisi ọgwụgwọ zuru oke nke Beijing Dongcun bụ ụlọ ọrụ ọgwụgwọ mkpofu ime obodo nke mbụ na China nwere “teknụzụ ọgwụgwọ ahịhịa anaerobic fementation biological treatment” dị ka isi ahụ.Atumatu Dongcun nkewa nke gunyere usoro nhazi na imeghari ihe, sistemu anaerobic biogas, wdg, iji mee ka mkpofu ahihia ghara idi ihe ojoo na ihe bara uru.N'ime ọrụ ọgwụgwọ nsị mmiri, anyị na-eji ọtụtụ igwe eletriki eletrik nke ụlọ ọrụ anyị, bụ nke a na-ejikarị na nlekota nlekota nke usoro ọ bụla nke ụlọ ọrụ na-edozi mmiri.
