... promising and sustainable solution for small towns in Vietnam as well as for other similar small towns in developing countries due to land availability, high treatment performance efficiency, cost effectiveness, ... O&M costs make it an ideal system for small towns in terms of cost. However, the greatest impacts for this scenario arise from the low technical performance of the treatment, especially ... context of small towns, this drawback will be overcome easily as small towns often have sufficient land for land-intensive wastewater treatment technologies, as compared to urban areas. Therefore,...