With the rapid development of the beer industry, a large quantity of wastewater is produced which poses great threat to the environment. This design is aiming to dispose of the wastewater of Yandangshan Beer in Leqing so as to discharge it up to standardsince there are plenty of organic compound in the wastewater. The paper analyse the links where the wastewater is produced, the pollutants as well as the main sources of pollution and choose the UASB-CASS process to treat the wastewater after which the outlet water quality will reach COD≤80 mg/L,BOD5≤20 mg/L,SS≤70 mg/L,pH6~9 and up to the Discharge Standard of Pollutants for Beer industry (GB19821-2005). 手工翻译,语法正确,楼上两位就不多说了,望楼主采纳