Bahri A, Basset C, Oueslati F, Brissaud F
National Research Institute for Agricultural Engineering, Waters, and Forestry, BP 10 Ariana, 2080, Tunisia.
Water Sci Technol. 2001;43(10):117-24.
In Tunisia, golf courses are irrigated with secondary treated effluent stored in landscape impoundments. The impact of the conveyance and storage steps on the physical-chemical and biological quality of irrigation water was evaluated on three golf courses over two years. It was found that the water quality varies all along the water route, from the wastewater treatment plant up to the irrigation site: nutrient and bacteria contents decreased along the route in the three cases. This variation depends on the wastewater quality, the length of the pipes conveying water, the number of regulation reservoirs and ponds, the water residence time in pipes, reservoirs and ponds, and the operation of the ponds. The bacteriological quality of irrigation water deteriorates during the irrigation period in the three golf courses as the ponds are operated as continuous flow reactors. The results obtained in this study indicate the inability of golf water supplies, as currently managed, to properly sanitize reclaimed wastewater and meet target quality criteria recommended by WHO (1989) for water intended for recreational use. For a safe reuse of reclaimed wastewater for golf course irrigation, changes in the design and operation of the ponds should be planned or additional treatment steps provided.
在突尼斯，高尔夫球场使用存储在景观蓄水池中的二级处理污水进行灌溉。在两年时间里，对三个高尔夫球场评估了输水和储水步骤对灌溉水物理化学和生物质量的影响。研究发现，从污水处理厂到灌溉地点，沿整个水路水质各不相同：在这三种情况下，营养物质和细菌含量沿水路下降。这种变化取决于废水质量、输水管道长度、调节水库和池塘数量、水在管道、水库和池塘中的停留时间以及池塘的运行情况。由于池塘作为连续流反应器运行，在三个高尔夫球场的灌溉期内，灌溉水的细菌学质量会恶化。本研究获得的结果表明，按照目前的管理方式，高尔夫球场的供水无法对再生废水进行适当消毒，也无法达到世界卫生组织（1989年）推荐的用于娱乐用途水的目标质量标准。为了安全地将再生废水用于高尔夫球场灌溉，应规划池塘设计和运行的变更，或提供额外的处理步骤。
