| Treatment of Organic Compounds in Reclaimed Wastewater for Groundwater Recharge |
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| 作者姓名： | 皮运正 胡俊 云桂春 |
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| 作者单位： | InstituteofNuclearandNewEnergyTechnology,TsinghuaUniversity,Beijing100084,China |
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| 基金项目： | the “985” Foundation of Tsinghua University |
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| 摘 要： | To study water quality problems associated with groundwater recharge, a tertiary treatment process, consisting of coagulation, sand filtration, and granular activated carbon (GAC) adsorption, was used in combination with a simulated soil aquifer treatment. The process significantly improved secondary effluent quality. GAC adsorption reduced organic substances expressed by UV-254, dissolved organic carbon as well as partially adsorbable organic halogens. The results of the Ames test show that the secondary effluent contains a high concentration of mutagens. GAC filtration removed adsorbable organic bromine slightly whereas GAC adsorption removed mutagens effectively. The simulated soil aquifer treatment was able to further reduce UV-254, dissolved organic carbon, and adsorbable organic halogens through biodegradation. Adsorbable organic bromine levels were also reduced by the soil aquifer treatment process. The given reclamation technology used for groundwater recharge is of benefit to the removal of dissolved organic carbon, UV-254, adsorbable organic halogens, and rnutagenicity.
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| 关 键 词： | 可吸附有机卤素 粒状活性碳 地下水回灌 土壤蓄水层处理 废水回收 |
Treatment of Organic Compounds in Reclaimed Wastewater for Groundwater Recharge |
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| PI Yunzheng,HU Jun,YUN GuichunInstitute of Nuclear and New Energy Technology,Tsinghua University,Beijing ,China.Treatment of Organic Compounds in Reclaimed Wastewater for Groundwater Recharge[J].Tsinghua Science and Technology,2004,9(4):455-459. |
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| Authors: | PI Yunzheng HU Jun YUN GuichunInstitute of Nuclear and New Energy Technology Tsinghua University Beijing China |
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| Affiliation: | PI Yunzheng,HU Jun,YUN GuichunInstitute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China |
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| Abstract: | To study water quality problems associated with groundwater recharge, a tertiary treatment process, consisting of coagulation, sand filtration, and granular activated carbon (GAC) adsorption, was used in combination with a simulated soil aquifer treatment. The process significantly improved secondary effluent quality. GAC adsorption reduced organic substances expressed by UV-254, dissolved organic car-bon as well as partially adsorbable organic halogens. The results of the Ames test show that the secondary effluent contains a high concentration of mutagens. GAC filtration removed adsorbable organic bromine slightly whereas GAC adsorption removed mutagens effectively. The simulated soil aquifer treatment was able to further reduce UV-254, dissolved organic carbon, and adsorbable organic halogens through biodeg-radation. Adsorbable organic bromine levels were also reduced by the soil aquifer treatment process. The given reclamation technology used for groundwater recharge is of benefit to the removal of dissolved or-ganic carbon, UV-254, adsorbable organic halogens, and mutagenicity. |
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| Keywords: | adsorbable organic halogens granular activated carbon (GAC) groundwater recharge soil aquifer treatment |
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