Desert Research Division, Research Institute of Forests and Rangelands, AREEO, Tehran, Iran.
Range Research Division, Research Institute of Forests and Rangelands, AREEO, Tehran, Iran.
Sci Rep. 2022 Sep 15;12(1):15521. doi: 10.1038/s41598-022-19331-0.
Considering the presence of 274 dusty days in 2021 in Zabol city, Iran, the present study aimed to evaluate the feasibility of using treated sewage effluent (TSE) for dust mitigation with natural methods of increasing land cover. Hence, first of all, the identification of sewage treatment facilities along with the volume and chemical status was carried out and compared to the various national and international legislation. Then, field investigation on land use and land cover, along with literature review on dust origins, sand detachment areas, and sand corridors in the study area will be assisted for optimal area suggestion. Note that, in the present study it was assumed that the application of TSE for wetting the surface to vegetation restoration resulted in wind erosion control in critical foci. The results showed that, so far, a total of 39,000 m/day could be treated, in the whole study area. The TSE volume calculated based on two scenarios consisting, (1) data obtained from the related organization, and (2) based the capacity of the wastewater plant is 2.8 and 5.1 mcm/year, respectively. Additionally, the study of TSE quality and its comparison to various regulation such as FAO, USEPA, INS, and CWQI indicated the applicability of transforming TSE to 14 km away from the WWT planet daily for rehabilitation of Hammon Hirmand through irrigation of T.stricta to increase the vegetation cover to above 30%.
考虑到 2021 年伊朗扎布尔市有 274 个沙尘日，本研究旨在评估利用处理后的污水（TSE）通过增加土地覆盖的自然方法来减轻灰尘的可行性。因此，首先对污水处理设施进行了识别，并对其体积和化学状况进行了评估，同时与各种国家和国际法规进行了比较。然后，将对土地利用和土地覆盖进行实地调查，并对研究区域的灰尘来源、沙源区和沙廊进行文献综述，以协助确定最佳区域。需要注意的是，在本研究中，假设将 TSE 应用于表面润湿以促进植被恢复，可在关键焦点控制风蚀。结果表明，到目前为止，整个研究区域每天可处理 39000 立方米。根据两种情况计算的 TSE 体积，（1）来自相关组织的数据，（2）基于废水处理厂的容量，分别为 2.8 和 5.1 mcm/年。此外，对 TSE 质量的研究及其与 FAO、USEPA、INS 和 CWQI 等各种法规的比较表明，TSE 可转化为每天 14 公里，用于通过灌溉 T.stricta 来修复哈蒙赫尔曼德，以增加植被覆盖度超过 30%。
