LIU Yan-jun,JIANG Chong-de,CAO Xiao-xin,et al.Application of a Land-saving Hybrid Biofilm Reactor (HBR) in Guiyang Jinbai Reclaimed Water Plant[J].China Water & Wastewater,2021,37(4):87-91.
節(jié)地型HBR生物膜技術(shù)在貴陽金百再生水廠的應(yīng)用
- Title:
- Application of a Land-saving Hybrid Biofilm Reactor (HBR) in Guiyang Jinbai Reclaimed Water Plant
- Keywords:
- wastewater treatment; biofilm; fixed bed; land-saving
- 摘要:
- 貴陽金百再生水廠設(shè)計規(guī)模為3.0×104 m3/d，出水水質(zhì)執(zhí)行《城鎮(zhèn)污水處理廠污染物排放標(biāo)準(zhǔn)》（GB 18918—2002）一級A標(biāo)準(zhǔn)，就近作為麥架河河道生態(tài)補(bǔ)水。生化處理采用節(jié)地型生物膜技術(shù)，通過懸浮填料和高填充率的固定床結(jié)構(gòu)，實現(xiàn)生物膜處理和生物過濾的雙重作用，高效去除污染物，省去二沉池，節(jié)省占地面積。介紹了該廠的工藝流程、構(gòu)筑物設(shè)計及設(shè)備配置情況，并對運行效果進(jìn)行總結(jié)。自運行以來,出水水質(zhì)穩(wěn)定達(dá)標(biāo)，COD、SS、氨氮、總氮、總磷去除率分別為89.4%、92.8%、96.3%、48.4%、90.9%;節(jié)地效果明顯，噸水占地僅為0.36 m2/(m3·d-1);運行成本為0.56元/m3，與同等規(guī)模的傳統(tǒng)活性污泥法污水廠的運行成本相近。
- Abstract:
- The effluent quality of Jinbai reclaimed water plant in Guiyang City, with designed treatment capacity of 30 000 m3/d, meets level Ⅰ- A of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) and recharged into Maijia River as replenishment. A hybrid biofilm reactor (HBR) was applied in bio-treatment process, which utilized high volumetric filling ratio of suspended carriers to achieve biofilm treatment and filtration simultaneously. This biofilm technology removed pollutants efficiently and saved plant footprint obviously by omission of secondary settling tank. This paper described the treatment process, structure design and equipment configuration of the plant, and also summarized the operation effect. The effluent pollutants meet the discharge standard since operation. The removal efficiencies of COD, SS, ammonia nitrogen, TN, TP are 89.4%, 92.8%, 96.3%, 48.4%, 90.9%, respectively. The footprint for unit treated wastewater is 0.36 m2/(m3·d-1). The operation cost is 0.56 yuan/m3, which is close to that of conventional activated sludge process with similar capability.
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