Greenhouse gas reduction of co-benefit-type wastewater treatment system for fish-processing industry: A real-scale case study in Indonesia

This study examined the application of co-benefit-type wastewater treatment technology in the fish-processing industry. Given that there was a dearth of information on fish-processing industrial wastewater in Indonesia, site surveys were conducted. For the entire fish-processing industry throughout the country, the dissemination rate of wastewater treatment facilities was less than 50%. Using a co-benefit approach, a real-scale swim-bed technology (SBT) and a system combining an anaerobic baffled reactor (ABR) with SBT (ABR–SBT) were installed in a fishmeal processing factory in Bali, Indonesia, and the wastewater system process performance was evaluated. In a business-as-usual scenario, the estimated chemical oxygen demand load and greenhouse gas (GHG) emissions from wastewater from the Indonesian fish-processing industry were 33 000 tons per year and 220 000 tons of equivalent CO_(2) per year, respectively. On the other hand, the GHG emissions in the co-benefit scenarios of the SBT system and ABR–SBT system were 98 149 and 26 720 tons per year, respectively. Therefore, introducing co-benefit-type wastewater treatment to Indonesia’s fish-processing industry would significantly reduce pollution loads and GHG emissions.

工业品进口贸易的环保效益与提升途径--基于减少我国工业废气与废水排放的分析

文章利用2002年与2012年的投入产出表与行业数据,计算我国工业品进口贸易对国内工业废气与废水的减排量及其变化,并模拟分析扩大工业品进口贸易减少我国工业废气与废水排放的方法与环保效益。研究结果表明:(1)2002年我国工业品进口贸易的工业废气与废水减排量相当于该年国内上述两种污染物排放总量的20%与32%,2012年,工业品进口贸易的工业废气与废水减排量相当于同期我国上述两种污染物排放总量的22%和24%。(2)适度扩大纺织原料业、造纸及纸制品业、化学纤维制造业、化学原料及化学制品制造业、非金属矿物制品业、黑色金属冶炼及压延加工业、有色金属冶炼及压延加工业、电力和热力的生产和供应业产品的进口规模,可使我国获得更多的工业废气与废水减排效益。

钢铁行业节能减排技术发展现状

随着国民经济的快速发展,人们对于环保节能减排的工作越来越重视。我国是钢铁大国,然而钢铁行业是高能耗和重污染大户。从钢铁行业废水回用、大气污染治理、冶金废渣回用以及低热值介质能源综合利用等方面介绍钢铁行业节能减排技术发展现状。