肉类加工工业已从简单的屠宰场进入精加工和深加工工业生产阶段，主要包括：①屠宰，②制罐，③炼油，④肉制品，⑤肠衣、鬃毛等副产品等。

    肉类加工废水主要来源于：宰前饲养场排放的畜类冲洗水；屠宰车间排放的含血污和畜类的地面冲洗水；烫毛时排放的含大量猪毛的高温水：解剖车间废水；炼油车间排放的油脂废水。此外还有冷却水、车间卫生设备、办公楼排放的生化污水。肉类加工废水是一种典型的有机废水，悬浮物浓度较高，一般不含重金属以及有害化学物质，废水中含有机蛋白质及油脂，含盐量也较高。

    Meat processing industry has from the simple slaughterhouse entered the stage of finishing and deep processing of industrial production, mainly includes: (1) slaughter, (2) can, (3) refining, (4) meat, (5) casing, mane and other by-products, etc.

    Meat processing wastewater mainly comes from: before slaughter farm emissions brutish wash water;the ground of the slaughtering plant emissions containing bloodstains and brutish wash water;the scalding emissions of hot water with large amounts of hair: the anatomy of the workshop wastewater;Grease wastewater are refining workshop.In addition to cooling water, the sanitary equipment workshop, office building and biochemical sewage discharge.Meat processing wastewater is a kind of typical organic wastewater and high concentration of suspended solids, generally do not contain heavy metals and toxic chemicals, the waste water containing organic protein and fat, salt content is higher also.