在福建,一个水果和蔬菜食品开发有限公司,座落在城市开发区,水果和蔬菜加工的放电过程的废水和生活污水的公司。根据环境保护三个原则的同时,必须处理废水达到当地环保部门的要求。
1、水处理的设计根据相关参数的主人,总规划过程水问= 35立方米\\ \/ d,24小时的生产设计,设计Qh = 1.5立方米的水处理\\ \/ h;
2、原始水3的设计,设计污水排放水质和水的质量满足综合废水排放标准表明1996 - 3标准。一些主要指标如下。蔬菜加工废水处理
(1)流程选择有机污染负荷不高,然而,沉积物的含一定量的废水,蔬菜残渣和悬浮固体和生化物质,因此,治疗系统提出了水解酸化+生物接触氧化;主要优点是过程:水解酸化处理单元,如泥沙悬浮物沉淀,与此同时,部分水解,有机质提高废水生物性;生物接触氧化处理单元是主要的废水有机物去除装置,运行稳定,污染物去除率高,污泥产量低,耐冲击,etc.Vegetables处理废水处理
(2)根据工况生产废水处理指令和设计过程的本质要求,废水在进入调节池之前,设置格栅,去除水中的残骸,调节池设置气体混合系统,加快水调节,防止泥浆淤积量。调节池污水泵池,单位初初池塘,设置加药系统,如泥沙悬浮解决,提高废水生物性别,有利于后续的好氧生化处理,废水流入生物接触氧化池,足够的氧气的条件下,好氧微生物对废水的有机营养物质,通过分解吸收有机化合物自身的代谢活动,从而达到去除污水中的有机物的影响。为了确保有氧治疗的影响,在系统中设置螺旋混合通风装置和弹性固体包装,为了提高氧气的切割效果,增加生物膜的面积,促进微生物的地方。
Biological contact oxidation pool to maintain a certain concentration of activated sludge, tank return sludge source, so 1 to ensure the stability of the reflection system operation, 2 with high removal rate of organic matter, \\\"3 prevent sludge bulking effectively;After aerobic treatment of mud mixture into the sedimentation basin, and mud mixture in this implementation spate separation, precipitation return sludge and biological contact oxidation pond and hydrolysis acidification pool, pool of surplus sludge discharge to the sludge;Water by the standard drains or spilling into the direct discharge of urban sewage pipe network;Physicochemical and biochemical sludge excess sludge to the sludge concentration pool, pool of concentrated black liquid from flowing into regulating pool, the concentrated sludge pump into the press filter for sludge dewatering processing, filtrate back into adjusting pool, mud cake outward processing;Vegetable processing wastewater treatment (3) the effect of each processing unit is expected to list 6-9 (4) vegetables processing wastewater treatment sludge is the product of the sewage treatment process, is an important part of the whole sewage treatment plant, processing purpose is to reduce the moisture content of sludge, reduce sludge volume, achieve stable properties, and create conditions for the further disposal.1) the overall sludge treatment process selection of sludge treatment process for: concentrated to digest to dehydration, drying, disposal.
考虑如果消化过程,需要增加蒸煮器,加热系统、混合、沼气处理和一系列的结构和设备,增加投资,经济效益差。项目产生的化学絮凝剂添加到污泥性质稳定,沉淀效果好,污泥含水率低,容易脱水。所以这个设计考虑到污泥干化池污泥脱水治疗。具体看到更多相关技术documents.2)污泥脱水的方法的选择
