【正文】 ...................................................................................................... 18 溫度 ........................................................................................................................ 18 營養(yǎng)比例 ................................................................................................................. 18 污泥負荷 ................................................................................................................. 18 溶解氧值 ................................................................................................................. 19 pH值 ....................................................................................................................... 19 早期消化 ................................................................................................................. 19 ............................................................................................................ 19 ............................................................................................................................................ 20 2 活性污泥 工藝及在運行中的污泥膨脹現(xiàn)象 摘 要 ： 活性污泥工藝是污水處理的主要工藝。 ....................................................................................................................... 2 工藝概況及基本參數(shù) ............................................................................................................ 2 工藝流程 ............................................................................................................................ 2 污泥膨脹的相關(guān)描述和分析 ................................................................................................ 3 相關(guān)描述 .................................................................................................................... 3 ． 2 相關(guān)分析 ................................................................................................................ 3 泥膨脹的應(yīng)對措施和解決方案 ............................................................................................. 3 ． 1 大幅度降低污泥農(nóng)度，減少二沉池固體負荷 ............................................................. 4 ． 2 減少回流污泥量 ....................................................................................................... 4 ． 3 投加先期排至儲泥池的厭氧污泥 ............................................................................... 4 效果分析 ............................................................................................................................ 5 .......................................................................................................................... 5 ....................................................................................................................... 6 混合液懸浮固體濃度 ............................................................................................................. 6 混合液揮發(fā)性懸浮固體濃度 ................................................................................................... 6 污泥沉降比 ........................................................................................................................... 7 污泥容積指數(shù) ........................................................................................................................ 7 ......................................................................................................... 7 ............................................................................................................ 8 ................................................................................................................. 8 ........................................................................................................................................ 8 營養(yǎng)物質(zhì)平衡 ........................................................................................................................ 8 溶解氧 .................................................................................................................................. 9 ..................................................................................................................................... 9 水溫 ..............................................