PDF《二零一七年》

ELTEK INTERNATIONAL COMPANY LIMITED 依利安达集团有限公司

6 A. THE ENVIRONMENT (continued) A1. Discharge and emission (continued) Air emissions (continued) The Group has built gas purification facilities, such as the alkaline degassing chamber and acidic degassing chamber, for the processing of atmospheric discharge from plants and have formulated the corresponding Instructions for Air Emissions Control to ensure that industrial air emissions generated in the production process will only be discharged after processing through the degassing chamber. Waste water management We operate in strict accordance with the requirements of national and local laws and regulations to ensure compliance with national standards in the discharge of waste water. The waste water collection system and process upgrade project commenced in

2016 with an investment approximately RMB20 million was completed and has been operated in 2017. The upgraded waste water collection system conducts waste water conveyance through a lift pump and facilitates waste water collection and processing through the separation of rainwater and wastewater. We have also improved our waste water treatment technology to allow the application of different processes for different types of waste water based on their characteristics. In particular, we have improved the pre-processing of the biochemical process to enhance the overall effectiveness and stability of our waste water treatment system. Due to the upgrade, the Group'

s annual discharge of COD (chemical oxygen demand) and ammonia nitrogen was reduced. A. 环境 (续) A1. 排放物 (续) 大气排放物 (续) 本集团针对工厂的大气排放物建立包括 碱性化气塔、酸性化气塔在内的各类气 体净化处理设备,并制定了相应的 《废 气控制工作指示》 ,以确保生产过程中 产生的所有工业废气均通过化气塔处理 后方可排放. 污水管理 我们严格遵守国家和地方法律法规要 求,以确保对外排放的污水符合国家排 放标准.本集团於2016年投资约2,000 万人民币对污水收集系统及工艺进行提 升改造,该工程於2017年改........