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處理洗砂泥漿|洗砂廢水零排放步驟和方法

發布者：隆中重工發布日期：2018-04-06

一、洗砂废水概况
　　洗砂廢水，是指水洗砂石生産企業在生産過程中洗砂時所産生的廢水，砂石是建築的基礎材料之一，隨著國內砂石需求的日益增長，自然生成砂的面臨著資源減

一、洗砂废水概况

　　洗砂廢水，是指水洗砂石生産企業在生産過程中洗砂時所産生的廢水，砂石是建築的基礎材料之一，隨著國內砂石需求的日益增長，自然生成砂的面臨著資源減少和环境保护的压力，水洗砂将作为建设用砂的重要来源跻身于建材市场。水洗砂可以广泛应用在混凝土、砂浆和制品中，在现代化建设工程中越来越显现出良好的市场前景，在质量和数量上逐渐替代自然生成砂是人工砂石生产线进入发展新时期的标志之一。

二、洗砂废水的特点

　　洗砂廢水的主要汙染因子是化學需氧量和懸浮物，而懸浮物的含量大，濃度大約3000mg/L，形成大量的泥漿水。泥漿的特性取決于它的成分，和當地的地質條件有關，一般特性是泥漿外觀爲土黃色，均勻有粘性，長時間靜止不分層，比重在1.20～1.46之間(其中黃沙比重1.6);含泥量20%～30%，PH值：6～7。在廢水未進行綜合治理之前，以每天生産8小時，每月生産25天，每年生産10個月計算，每年的廢水的産生量就是80000噸(這裏是按一台碾計算)。這些廢水有大約80噸化學需氧量(COD)和8000噸懸浮物(SS)，如果不對其生産廢水進行及時有效的處理，不J會浪費大量的水資源，汙染水質，影響道路交通，影響附近居民的正常生産生活，甚至會激化社會矛盾，給社會增加不和諧因素。

三、筛选一体机厂家提供：洗砂废水的处理方法

客戶前期處理過的物料進入滾筒洗砂裝置，在滾筒裝置中經過篩分後形成兩種粒度不同的物料滾筒中合格的物料直接經輸送帶運走，篩下物料進入中段儲水槽中，經洗砂輪清洗篩分之後合格物料進入後端脫水裝置中進行脫水處理。儲水槽中溢流部分廢水(包含少量洗沙輪未撈起的合格物料，廢水，雜質)進入後端抽水槽中，經G壓水泵打進分離回收裝置，進過離心濃縮之後合格物料打到脫水裝置上面進行脫水處理。廢水、雜質經分離回收裝置進入返水箱排出。

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