Accidental organic overloading (shock loading) is a common cause of failure in the anaerobic co-digestion fats, oils, and greases (FOG). Nonetheless, questions still remain about how shock loads alter an digester's biogas productivity response to future overloads. To address this knowledge gap, study utilized short increases OLR, or loads, adapt one reactor FOG compare its that non-adapted dige...

[1] Clear-sky longwave radiative feedback processes depicted in climate models prepared for the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) are investigated using satellite observations of the clear-sky outgoing longwave radiation (OLR). Estimates of clear-sky longwave radiative damping are derived from regional, seasonal, and interannual sources of variabili...

Due to changeable nature of the industrial wastewaters, proper operation of an industrial wastewater treatment plant is of prior importance in order to keep the process stability at the desired conditions. In this mean, simulation of the treatment system behavior using artificial neural network (ANN) can be an effective tool.  This paper evaluates long term performance and process stability of ...

Excessive acidification and low methane (CH4) percentage are technical challenges restricting anaerobic digestion (AD) of kitchen waste, especially under high organic loading rate (OLR) conditions. Although the contribution Fe0 powder to excessive elimination CH4 yield improvement in mesophilic AD (MAD) has been extensively reported, its impact on thermophilic (TAD) process with more frequent p...

BACKGROUND Anaerobic digesters become unstable when operated at a high organi c loading rate (OLR). Investigating the microbial community response to OLR disturbance is helpful for achieving efficient and stable process operation. However, previous studies have only focused on community succession during different process stages. How does community succession influence process stability? Is thi...

The rapid increase in demand for renewable energy has led to a need more efficient and effective ways produce biogas from palm oil mill effluent (POME), which is rich biological chemical oxygen (BOD COD). Despite its potential as source of biogas, POME not always effectively utilized production due lack optimization the treatment process. This study aims address this issue by identifying critic...

An innovative biogas upgrading process consists in the utilization of a microbial electrolysis cell (MEC) which biocathode performs bioelectromethanogenesis reaction reducing CO2 into CH4 while an additional removal mechanism sorption as HCO3−, due to alkalinity generation catholyte. Here, two chamber 12-liter tubular MEC has been developed upgrade by using bioelectrochemical organic matter oxi...

In India, Pulp & paper industries have been large uses of portable water and consequently large generator of waste water. Anaerobic treatment of paper processing waste water has a distinct advantage of recovery of inherent energy in the form of methane gas with much less sludge production. A hybrid reactor that capitalizes on the positive features of anaerobic filter(AF) and up-flow anaerobic s...

This study investigated the effect, on reactor performance and biomass retention inside the bed, of the material used to make the supports of anaerobic fixed-bed reactors. Three inert supports of similar shape but made of three different materials polyvinyl chloride, polypropylene, high-density polyethylene were manufactured and used. All three supports had the same specific surface area but di...

The performance of an anaerobic baffled reactor at the pilot scale, with a 100-L volume and six compartments, that is used to treat low-strength industrial wastewater (671.5±49.9 mg COD/L, 350.1±36.8 mg BOD5/L and 443.8±60.7 mg SO4 -2/L) was studied. The reactor was started with a hydraulic retention time (HRT) of 25 h at 35 oC, which was gradually reduced to 3.33 h. The best reactor performanc...