Cha W, Choi H, Kim J, Kim I S
Water Reuse Technology Center, Kwangju Institute of Science and Technology, Kwangju, 500-712, South Korea.
Water Sci Technol. 2004;50(2):315-22.
Soil batch and column experiments were performed to characterize the wastewater effluents from seven different wastewater treatment plants in the Jonnam province, South Korea, with the purpose of evaluating the effluents for possible application of a soil aquifer treatment (SAT) in Korea. Batch experiments were conducted to measure the biodegradable dissolved organic carbon (BDOC) while 1 m soil columns, for simulating SAT, were employed to further analyze dissolved organic carbon (DOC) removal. The soils were collected from a river bottom in Jonnam. The BDOC fractions and the residual DOC concentrations for the effluents ranged from 19.3 to 59.9% and from 1.0 to 7.5 mg/L, respectively, depending on the reaction time. Applying the tentative criteria based on the data obtained for the BDOC and residual DOC, three effluents, from Gwangju, Hwasoon, and Jangsung, were found to be the most suitable for SAT applications. It was also concluded that the site characteristics should be also considered with regard to the retention time when evaluating the feasibility of SAT application in a certain region.
进行了土壤批次和柱实验，以表征韩国全罗南道七个不同污水处理厂的废水排放情况，目的是评估这些废水在韩国用于土壤含水层处理（SAT）的可能性。进行批次实验以测量可生物降解的溶解有机碳（BDOC），同时使用1米长的土壤柱模拟SAT，以进一步分析溶解有机碳（DOC）的去除情况。土壤取自全罗南道的河底。根据反应时间，废水的BDOC组分和残余DOC浓度分别在19.3%至59.9%和1.0至7.5毫克/升之间。根据BDOC和残余DOC获得的数据应用暂定标准，发现光州、和顺和长兴的三种废水最适合用于SAT。还得出结论，在评估某一地区SAT应用的可行性时，还应考虑场地特征和停留时间。
