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Wastewater treatment plants produce large quantities of sludge. Sludge originates from different stages of treatment and typically contains elevated levels of heavy metals, a large number of organic compounds and potentially pathogenic organisms. Considering the recent increased environmental concern, the authorities and the water utilities are facing strong demands for the safe disposal of the sludge. A good management plan regarding water treatment residuals should take into consideration the following aspects: ...

Considering the increasing generalized pollution and tightening of environmental protection regulations, it is necessary to constantly optimize the treatment technologies, in order to meet the quality standards when discharging wastewater into surface water. The paper presents a study on a wastewater treatment plant in Romania that serves a municipality with a population of approximately 400,000 inhabitants, having a sewerage network working in a unitary system. The main indicators of the waste water quality (flow...

Considering the widespread pollution and the need for taking drastic measures to protect the environment, it is necessary to constantly optimize the treatment stages within the wastewater treatment plants in order to meet the quality standards when discharging wastewater into surface water. The paper presents a study on a wastewater treatment plant in Romania that serves a municipality with a population of approximately 400,000 inhabitants, having a sewerage network working in a unitary system. The study followed ...