Ex-situ biomethanation in a biotrickling filter is being developed as robust technology for the conversion of CO2 to CH4 using H2 generated from renewable power. The uses hydrogenotrophic methanogens biofilm catalyst and optimum supply nutrients imperative stable long-term operation. In this study, essential were highlighted along with systemic investigation nutrient methods. results showed tha...

Almost three years on from commissioning, the unique $30M domestic wastewater treatment approach developed by Hastings District Council (HDC) and consultants MWH has proven itself to be leading-edge, technically-robust, cost-effective and culturally-acceptable. An innovative “no sludge” solution was adopted that has resulted in a paradigm shift in wastewater planning and treatment in New Zealan...

With the application of plate count methods and of the KOH-flexirubin test, bacteria belonging to the Cytophaga group were proved to occur regularly in samples from biological sewage treatment facilities. Generally, the percentage of Cytophaga colonies of the total heterotrophic colonies was lowest in the inflow sewage water as compared with the values found in activated sludge, trickling filte...

The total estrogenic activity of the wastewater from a swine farm in Japan was quantitatively characterized, and the compounds responsible for the estrogenic activity were identified and quantified. The wastewater treatment process consisted of a series of an up-flow anaerobic sludge blanket (UASB) and a trickling filter. Samples were collected at each treatment step, and the total estrogenic a...

introduction with increasing development of urban communities and increase of population in towns, thus the need for water is also increased in the recent years. production rate of municipal wastewater has also grown dramatically. on the other hand, increase of public awareness about the water pollution problems has followed the new and stricter environmental laws concerning wastewater discharg...

Until recently, biological treatment of odors in biofilters or biotrickling filters was thought to require a longer gas contact time than chemical scrubbing, hence bioreactors for air treatment required a larger footprint. This paper discusses the conversion of chemical scrubbers to biological trickling filters. Initially, research was conducted with a laboratory-scale biotrickling filter. An e...