Biological Filters - Water and Wastewater Information

Articles & Whitepapers

Frequently Asked Questions and Troubleshooting in Activated Sludge Process (Part 2)

Q: I ran into a problem. In the past few days, we found that the sludge was floating in lumps in the secondary sedimentation tank, which was very loose. It may be due to swelling of the sludge, which is not serious. But I am very surprised that the MLVSS of the biochemical tank is about 2000mg/l, the sludge age is relatively short, the sludge is not aging, and it is within the control range. The ...

Fe Removal Drinking Water- Case Study

A water utility in the state of Delaware has potable groundwater wells with high levels of Fe (15 ppm peeks) with a combined flow rate of 1 MGD. The existing biological filter needed replacement due ...

Multipoint online measurements in Arsenic removal process

Process control for monitoring, stabilisation and optimisation The SEIBOLD Wasser online analyser for Arsenic is used in a landfill leachate Arsenic removal plant. The online measurements are taken at different removal stages to control the whole ...

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Plastic Filter Tube Set Media for Water Filtration & Fish Pond RAS of Fish Farm

After years of research and development and rich experience in polyethylene extrusion, small boss company developed the structured filter media Bio-Block. Bio-Block has been widely used in small sewage treatment projects in Europe, involving domestic sewage, industrial wastewater and aquaculture wastewater.