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首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Winery wastewater treatment in a hybrid constructed wetland
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Winery wastewater treatment in a hybrid constructed wetland

机译：混合人工湿地中的酒厂废水处理

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A full-scale hybrid constructed wetland (CW) was built to treat mixed effluent derived from a winery and tourist establishment. The treatment system consisted of a hydrolytic upflow sludge bed (HUSB) digester for suspended-solids removal, a vertical-flow (VF) constructed wetland and three parallel subsurface horizontal-flow (HF) constructed wetlands. The HUSB reduced TSS loads to 72-172 mg L~(-1), helping to prevent clogging, while organic loads for the wastewater entering the VF ranged from 422 to 2178 mg COD L~(-1) and from 216 to 1379 mg BOD5 L~(-1). At an average hydraulic loading rate (HLR) of 19.5 mm d~(-1) and average surface loading rates (SLR) of 30.4g COD m~(-2) d~(-1) and 18.4 g BOD5 m~(-2) d~(-1), the overall VF + HF CW system reached average removal efficiencies of 86.8% of TSS, 73.3% of COD, and 74.2% of BOD5. The system also removed 52.4% of total Kjeldhal nitrogen (TKN), 55.4% of NH3-N and 17.4% of phosphates. While the VF unit showed high removal rates, the HF unit operated at lower removal rates than those previously reported. The CW units showed rapid adaptation to low pH values. A linear-regression analysis indicated that the independent variables SLR and temperature determined more than 95% of the variation in performance and efficiency of the CW system and offered simple mathematical models for design and system-description purposes.
机译：建造了一个全面的混合人工湿地（CW），以处理来自酿酒厂和旅游设施的混合废水。该处理系统包括一个用于去除悬浮物的水解上流污泥床（HUSB）消化池，一个垂直流（VF）人工湿地和三个平行地下水平流（HF）人工湿地。 HUSB将TSS负荷降低至72-172 mg L〜（-1），有助于防止堵塞，而进入VF的废水的有机负荷范围为422至2178 mg COD L〜（-1）和216至1379 mg BOD5 L〜（-1）。在19.5 mm d〜（-1）的平均水力加载速率（HLR）和30.4 g COD m〜（-2）d〜（-1）和18.4 g BOD5 m〜（-的平均表面加载速率（SLR）下2）d〜（-1），整个VF + HF CW系统的平均去除效率达到TSS的86.8％，COD的73.3％和BOD5的74.2％。该系统还去除了Kjeldhal总氮（TKN）的52.4％，NH3-N的55.4％和磷酸盐的17.4％。 VF装置的去除率很高，而HF装置的去除率却比以前报道的要低。连续波装置显示出对低pH值的快速适应。线性回归分析表明，自变量SLR和温度决定了CW系统性能和效率变化的95％以上，并为设计和系统描述目的提供了简单的数学模型。

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