在福建,一個水果和蔬菜食品開發有限公司,座落在城市開發區,水果和蔬菜加工的放電過程的廢水和生活汙水的公司。根據環境保護三個原則的同時,必須處理廢水達到當地環保部門的要求。
1、水處理的設計根據相關參數的主人,總規劃過程水問= 35立方米\\ \/ d,24小時的生產設計,設計Qh = 1.5立方米的水處理\\ \/ h;
2、原始水3的設計,設計汙水排放水質和水的質量滿足綜合廢水排放標準表明1996 - 3標準。一些主要指標如下。蔬菜加工廢水處理
(1)流程選擇有機汙染負荷不高,然而,沉積物的含一定量的廢水,蔬菜殘渣和懸浮固體和生化物質,因此,治療係統提出了水解酸化+生物接觸氧化;主要優點是過程:水解酸化處理單元,如泥沙懸浮物沉澱,與此同時,部分水解,有機質提高廢水生物性;生物接觸氧化處理單元是主要的廢水有機物去除裝置,運行穩定,汙染物去除率高,汙泥產量低,耐衝擊,etc.Vegetables處理廢水處理
(2)根據工況生產廢水處理指令和設計過程的本質要求,廢水在進入調節池之前,設置格柵,去除水中的殘骸,調節池設置氣體混合係統,加快水調節,防止泥漿淤積量。調節池汙水泵池,單位初初池塘,設置加藥係統,如泥沙懸浮解決,提高廢水生物性別,有利於後續的好氧生化處理,廢水流入生物接觸氧化池,足夠的氧氣的條件下,好氧微生物對廢水的有機營養物質,通過分解吸收有機化合物自身的代謝活動,從而達到去除汙水中的有機物的影響。為了確保有氧治療的影響,在係統中設置螺旋混合通風裝置和彈性固體包裝,為了提高氧氣的切割效果,增加生物膜的麵積,促進微生物的地方。
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.
考慮如果消化過程,需要增加蒸煮器,加熱係統、混合、沼氣處理和一係列的結構和設備,增加投資,經濟效益差。項目產生的化學絮凝劑添加到汙泥性質穩定,沉澱效果好,汙泥含水率低,容易脫水。所以這個設計考慮到汙泥幹化池汙泥脫水治療。具體看到更多相關技術documents.2)汙泥脫水的方法的選擇
