Largest MBR plant gets Roto-Sieve protection

CSO Technik report that its principal’s, Lackeby Products, have been awarded a contract to supply Roto-Sieve drum screens to the QingHe waste water treatment plant in Beijing, China. The QingHe plant (3,000,000 PE) will become the largest MBR plant in the world when it is completed with a capacity of 240,000 m3/d.

19 Drum screens are being supplied via Purac China to provide 1mm screening protection for the MBR plant in order to reduce operational maintenance and extend service life.

There are more than 100 Rotosieve Drum screens in operation worldwide protecting MBR plants including 50 units in France alone. The Roto-Sieve drum screen is the leading technology for pre-screening of MBR plants as it provides a robust and cost effective means or removing all solids greater than 1mm in two directions from the flow.

The Roto-Sieve drum screen has been used on numerous solids/liquid separation projects in a wide range of industries including, agriculture, food processing, brewery, plastics recycling as well as municipal and industrial waste water treatment.

CSO Technik has supplied numerous Roto-Sieve drum screens throughout the UK and provides a full design and installation service with comprehensive after sales.

For further information on the QingHe plant, MBR pre-screening or the myriad applications for the Roto-Sieve drum screen please contact Aneurin Morris at CSO Technik.

South West Water has appointed CSO Technik as one of their three odour control framework suppliers for AMP5.

South West Water provides drinking water and waste water treatment services to some 1.65 million residents and an additional 5 million annual visitors to Devon and Cornwall. The area served by South West Water covers over 10,300 square Kilometres.

CSO Technik is already one of the odour control framework suppliers to Scottish Water and is currently completing a large Chemical scrubber system contract at Kirkcaldy.

In addition to Chemical scrubber systems, CSO also supply a wide range of odour abatement solutions incorporating, Biofilters, Bioscrubbers, Catalytic Iron Filters, Carbon Filters as well as the Terminodour process.

South West Water staff visited CSO’s largest Terminodour installation at Swansea, as part of their vetting procedure, and were suitably impressed by the systems effectiveness and low carbon footprint. The Terminodour system incorporates ionising technology to oxidise odours in situ rather than extracting to a scrubbing process. The combined benefit of reduced air change rates and lower pressure drops lead to substantive reductions in energy consumption whilst providing effective odour abatement and improving the working environment for operators.

Colin Froud, CSO Technik’s Managing Director, says “We are delighted that the benefits of our innovative and low carbon footprint odour control technologies have led to the award of a supply framework with South West Water”.

Kirkcaldy WwTW Improvements Works - Odour Control System

CSO Technik’s Environmental Management System (EMS) has now been independently assessed, registered and certified to ISO 14001:2004. Assessment and certification was carried out by UKAS accredited Global Group.

Colin Froud, Managing Director of CSO, states “ We are very pleased that our longstanding commitment to the environment has been officially recognised and look forward to growing our business which is fundamentally focused on providing solutions to environmental pollution”.

CSO Technik provide a wide range of engineered “Pollution Solutions” for the abatement of Odours and VOC’s, improving Internal air quality, prevention of pollution to rivers and oceans from combined storm overflows as well as maximising renewable energy in the form of biogas from anaerobic digestion plants.

CSO Technik Ltd is pleased to announce the appointment of Universal Technical LLC as a distributor for its odour control product line in the United Arab Emirates.

CSO Technik’s Pump Action Screen has recently proven the effective operation of its cleaning system by removing 3 months of accumulated debris on the flow side of the screening basket. The screen at a Combined Storm overflow at Godre’ Graig CSO South Wales was installed by CSO Technik in October 2008. Unfortunately a power supply to the screen could not be secured until February 2009. In the meantime the Pump Action Screen was effectively used as static screen to protect the overflow to the river.

When the Pump Action screen came to be commissioned in Mid February 2009 the screen basket was, as expected, significantly blinded by sewage related debris. With the power supply secured the submersible pump that is used to provide the motive power for the screen cleaning system became usable.  The pump is mounted in line with the screen basket and draws storm water from the continuation flow and which is then mixed with air from a venturi injector. The mixed water and air is used to scour the underside of the screening basket to remove screenings and then utilises the motive power of the scouring jet to push the screenings well past the end of the screen and back into the continuation flow to avoid re-presentation. The pump is the only moving part on the entire screen and as at Godre’ graig is normally mounted on a guide rail system so that it can be removed, serviced and replaced without the need for any hazardous man entry. Consequently there is no need for any confined entry to service or maintain the screen and field servicing can be carried out by just one man leading to significant operational savings.

The Pump Action Screen supplied at Godre’ Graig was designed to handle a spill flow of 90 l/s through its 6mm perforated stainless steel screen basket. The Screen was tested at the National CSO testing centre in Wigan and achieved a screenings retention value (SRV) of 58%.
The Pump Action Screen was invented, developed and patented by CSO Technik and is now in service in more than 8 countries.

Although activated carbon was being considered for this project the client eventually decided to opt for Terminodour based on the competitiveness of the product and the longer term environmental benefits as it does not have any media to replace or dispose of. In fact the Terminodour system does not use any water or chemicals either. Power costs are significantly lower as the fan sizes are smaller as the system has much lower pressure drops than those presented by carbon media, making the Terminodour system one of the most environmentally friendly odour abatement systems available.