circulation well Applications

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Piping & ducting solutions for the HVAC industry

by Proco Products, Inc.     based in Stockton, CALIFORNIA (USA)

The heating, ventilation, and air conditioning industry refers to the technology of indoor temperature control. A sub-discipline of mechanical engineering, HVAC systems are crucial in the design of residential as well as commercial structures. These systems control the temperature, and also the quality of the air that gets circulated, by replacing or exchanging the air in a particular space. Heating, cooling and ventilation systems require high-quality, precision-engineered parts, such as those manufactured by PROCO Products. PROCO operates worldwide, and maintains one of the largest product inventories in North America.

Wastewater Treatment for the Pulp & Paper Industry

by HydroThane STP BV     based in KC `s Hertogenbosch, NETHERLANDS

The pulp and paper industry generates large volumes of highly heterogeneous waste waters containing compounds from wood or other raw materials, process chemicals and compounds formed during processing.

The waste water streams from pulp and paper vary greatly in concentration and composition. The waste water from mechanical pulping (TMP) and secondary fiber pulping as well as the condensates from chemical and semi-chemical pulping are typically non-toxic to methanogenic degradation and contain easily degradable organic compounds. Amongst various anaerobic systems, the UASB and ECSB (EGSB) processes are the most applied anaerobic reactor systems in the pulp and paper industry. The Upflow Anaerobic Sludge Blanket (UASB) process and the External Circulation Sludge Bed (ECSB) process from HydroThane are worldwide proven processes for the treatment of this type waste water.

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