In microbial fuel cell techniques, I usually find that term, Hydraulic retention time, can any one help in explaining that? document.write(new Date().getFullYear()); Due to their rapidity, respiration measurements are preferred for online analysis. 1. COD evaluates all chemically oxidizable substances and can be directly related to the true oxygen demand of … In the following years, further parameters have been defined. The table below shows some typical compounds and their characteristics in terms of oxygen demand and ozone treatment demand. Serving the industry since 1999, AOS Treatment Solutions provides a robust range of wastewater treatment solutions including wastewater clarification, sludge dewatering, chlorination/de-chlorination, phosphorus removal from wastewater, and odor control. To use all functions of this page, please activate cookies in your browser. Common products can only be adjusted or be equipped with modules and multiple furnaces. Indeed, as technology evolves real time monitoring of parameters such as COD, SS, Ammonia, Total Nitrogen and Phosphorus are now possible giving greater or operational control than ever before. “Dichromate does not oxidize ammonia into nitrate, so this nitrification can be safely ignored in the standard chemical oxygen demand test” (. Hello, Nice to see you again here, on a great website that discuss the secret of water and wastewater treatment world, namely On-Water.Us. Due to the application of hazardous chemicals and having an analysis time of 2 hours the method is not suitable for online use. Is it possible that the Chemical Oxygen Demand (COD) can increase and decrease when applying AOP treatment? //--> 2000 mg/L. Flocculation uses a chemical polymer (flocculating agent) to precipitate the clumped particles out of the water by forming larger particles, or flocs. See the post on the original source at : http://on-water.us. Due to the 5 day analysis time and the measurement of the carbonaceous BOD instead of total BOD, the BOD5 is not suitable to assess the current capacity of the waste waters' degradation by bacteria. At this temperature, all carbon compounds are completely oxidized. Correlations between TOC and COD are defined in the German waste water ordinance (AbwV) and can be determined for each substance.
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