Topic
Trickling filter
About: Trickling filter is a research topic. Over the lifetime, 1098 publications have been published within this topic receiving 20219 citations.
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TL;DR: In this article, a correlation-regression method is developed for determination of the first order and the retardant reaction rate coefficients for the Eckenfelder mathematical models of trickling filtration process.
1 citations
TL;DR: In this paper, a two-stage treatment system consisting of cascade cum trickling filter (CCTF) and multilayer adsorption (MLA) bioreactor was developed to enhance the contaminants removal such as chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP).
Abstract: The novel two-stage treatment system consisting of cascade cum trickling filter (CCTF) and multilayer adsorption (MLA) bioreactor was developed to enhance the contaminants removal such as chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP). The maize cob and date palm fiber were used as biofilm support media in trickling filter. The MLA bioreactor was operated using the composite adsorbent (refused crushed brick + rice husk + steel slags). The maximum adsorption uptake of composite adsorbent was observed as 0.6 mg/g for ammonium and 3.5 mg/g for phosphorus. Kinetic analysis showed that the composite adsorbent had a faster removal rate for phosphate than ammonium. The maximum desorption of ammonium and phosphate was found to be 14.6% and 6.5%, respectively. The performance of both cascade cum trickling filter and multilayer adsorption (CCTF-MLA) systems was also evaluated using the various COD-TN ratios and flow rates. The removal efficiencies of COD, TN and TP were found 93%, 87% and 86%, respectively, and their corresponding mean effluent concentrations were noted 18 mg/L, 5.5 mg/L and 2.3 mg/L. The developed CCTF-MLA system removed the 3log of the total count and total coliform and 2log of Escherichia coli and salmonella. So, the CCTF-MLA system could be efficient for wastewater treatment due to the steady removal rate of COD, TN and TP.
1 citations
TL;DR: It was found that biosorption only effectively occurs when a WAS is paired with the wastewater from the same facility, and operating the HRBC with a long contact time or with high DO increases the amount of biosor adaptation but reduces the BMP of the float.
1 citations
12 Jul 2021
TL;DR: In this paper, a pilot facility for the recycling of laundry effluent was developed and tested, which is powered by a photovoltaic plant with second-life batteries, treated the wastewater within the unit and constantly reuses the treated wastewater for washing in a closed cycle.
Abstract: In the scope of this study, a pilot facility for the recycling of laundry effluent was developed and tested. With the aim to enable nearly complete energy and water self-sufficiency, the system is powered by a photovoltaic plant with second-life batteries, treats the wastewater within the unit and constantly reuses the treated wastewater for washing in a closed cycle. The technology for wastewater treatment is based on a low-tech approach consisting of a physical/mechanical pre-treatment and biological treatment in trickling filter columns. The treatment process is operated in batch mode for a capacity of five washing cycles per day. During five weeks of operation water quality, energy consumption and production, water losses and washing performance were monitored. The system recovered 69% of the used water for the washing machine while treating the wastewater to the necessary water quality levels. The average COD removal rate per cycle was 92%. Energy analysis was based on modelled data of the monitored energy consumption. With the current set-up, an internal consumption rate of 80% and self-sufficiency of 30% were modelled. Future developments aim at increasing water and energy self-sufficiency and optimizing the water treatment efficiency.
1 citations