Wastewater treatment is a technique used to reclaim and reuse wastewater for other productive uses. This reduces the demand for freshwater resources, and further enhance conservation of aquatic habitat, and sustainable utilization of water resources. Concerns for wastewater in Sweden began in the 1930s with only mechanical treatment but efficiently implemented in the 1960s as a result of significant eutrophication observed in open waters such as the Baltic Sea. Although prevailing wastewater ...
