E hiwere ọrụ mbụ e ji mmanụ ethanol eme ihe n'ụwa nke e ji ferroalloy eme ihe n'ụbọchị nke iri abụọ na asatọ na Pingluo County, Shizuishan City, Ningxia. A na-atụ anya na ọrụ a ga-emepụta tọn mmanụ ethanol 45,000 na tọn ntụ protein 5,000 kwa afọ, na-enweta uru mmepụta nke nde yuan 330, na-ebelatakwa ikuku carbon dioxide site na tọn 180,000 kwa afọ.

Teknụzụ nke ịgbakọ gas mmepụta ihe site na bio-fermentation iji mepụta mmanụ ethanol bụ usoro biotechnology na-apụta, nke nwere ike ime ka akụrụngwa gas mmepụta ihe dị irè ma dị ọcha. Teknụzụ a dị oke mkpa maka ibelata ikuku carbon, dochie ike fosil, hụ na ike mba na nchekwa nri dị, na iwulite usoro akụ na ụba gburugburu akwụkwọ ndụ akwụkwọ ndụ na obere carbon.

A ghọtara na iji teknụzụ a eme ihe nwere ike ibelata ikuku carbon dioxide site na tọn 1.9 kwa tọn mmanụ ethanol a na-emepụta, na itinye mmanụ ethanol na petrol nwere ike ibelata mmetọ ikuku ụgbọala nke ọma. N'otu oge ahụ, teknụzụ a na-eji ihe ndị na-abụghị ọka eme ihe, na tọn mmanụ ethanol ọ bụla a na-emepụta nwere ike ịchekwa tọn ọka atọ ma belata ojiji ala a na-akọ ihe site na eka 4, nke na-enyere aka hụ na nri dị mma.

“(Ọrụ a) nwere ihe dị mkpa n'ịkwalite ụlọ ọrụ ferroalloy iji gbanwee ụdị ojiji ike ọdịnala, ime ka ojiji akụrụngwa dịkwuo mma, na ịhazi mbelata na mmepe nke ikuku na-ekupụ.” Li Xinchuang, Osote Onyeisi nke China Iron and Steel Association na Odeakwụkwọ nke Kọmitii Party nke Metallurgical Industry Planning and Research Institute N'emume ọrụ ahụ nke emere n'otu ụbọchị ahụ, e kwuru na ọrụ nke iji ferroalloy industrial dail gas emepụta mmanụ ethanol bụ nnukwu ihe ịga nke ọma na mmepe nke mgbanwe obere carbon nke ụlọ ọrụ ferroalloy.