首页> 外文会议>Global Symposium on Recycling, Waste Treatment and Clean Technology; 20040926-29; Madrid(ES) >AMMONIA JNITRATE AND PHOSPHORUS REMOVAL FROM WASTEWATER BY RICE HUSK
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AMMONIA JNITRATE AND PHOSPHORUS REMOVAL FROM WASTEWATER BY RICE HUSK

机译:稻壳去除硝酸铵和废水中的磷

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The potential use of biomaterial rice husk for removal of ammonia, nitrate and phosphorus from wastewater samples was investigated in this study. The efficiency of such substances removal was determined in terms of sludge and detention time under both aerated and non aerated conditions. The experimental fixed parameters were pH=7-8, temperature=25℃ and mixing speed=100 rpm. Different weights of rice husk were tested for the optimal removal of ammonia from raw wastewater and found to be 5 gm of rice husk per every liter of wastewater. Experimental work was carried out in the laboratory on batch scale using raw wastewater and sludge from Zenien wastewater treatment plant, Gize, Egypt. Number of batches was performed with different combination of sludge, rice husk and aeration. The maximum ammonia, nitrate and phosphorus jemoval efficiency were found at batch containing sludge, rice husk and without aeration. The presence of rice husk with sludge in the same batch increased the ammonia, nitrate and phosphorus removal by about 45%, 70%, 40% over batch containing only sludge.
机译:在这项研究中,研究了生物材料稻壳可用于去除废水样品中的氨,硝酸盐和磷的潜在用途。在充气和非充气条件下,根据污泥和滞留时间来确定这些物质的去除效率。实验固定参数为pH = 7-8,温度= 25℃,混合速度= 100 rpm。测试了不同重量的稻壳,以最佳地去除原废水中的氨,发现每升废水中有5克稻壳。在实验室中,使用来自埃及吉兹(Gize)的Zenien废水处理厂的原废水和污泥进行了批量试验。用污泥,稻壳和曝气的不同组合进行批处理数量。在含有污泥,稻壳且不曝气的批次中,氨,硝酸盐和磷的最大迁移效率被发现。与仅含污泥的批次相比,同一批中带有污泥的稻壳可将氨,硝酸盐和磷的去除量提高约45%,70%,40%。

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