A modified integrated physical advanced primary treatment to enhance particulate organic carbon removal in municipal wastewater treatment plants.

In the pursuit of a treatment approach that is both cost-effective and environmental-friendly, the applicability of microscreen (MS) techniques coupled with a primary sedimentation tank (PST) as a physical advanced primary treatment (APT) to enhance the removal of particulate organic carbon (POC) from municipal wastewater was investigated. A pilot unit, including a modified MS, adjustable to different meshes (including 20 and 15 μm) was operated continuously downstream to the PST at the Büsnau wastewater treatment plant in Stuttgart, Germany, and monitored for more than half a year. A strategy involving time-dependent backwashing and recirculation of MS permeate was employed to remove as much POC as possible from primarily treated wastewater, thereby extending the application of the MS.

An integrated physical-chemical system for concurrent carbon, nitrogen, and phosphorus removal in municipal wastewater treatment plants.

A substantial quantity of suspended solids (SS) present in municipal wastewater leads to the swift depletion of the ion exchange (IE) capacity of natural zeolites like Clinoptilolite (CIO). This limitation has become the primary factor contributing to the limited adoption of the IE technique within municipal wastewater treatment plants (WWTPs). However, an extensive lab-scale and pilot-scale study conducted over approximately one year has made it possible to efficiently apply the IE system using CIO (main grain size of 0.

Performance evaluation and siting index of the stabilization ponds based on environmental parameters: a case study in Iran.

Stabilization ponds are open pools that remove total suspended solids, organic matters, microbial and pathogenic agents using physical, chemical, and biological processes. If the stabilization ponds are not well designed, they can produce odors, breed many insects, increase suspended solids concentration in the effluent and pollute groundwater. Consideration of environmental factors is critical for operation and maintenance.