............................................................................................................................... 1 INTRUDUCTION ...................................................................................................................... 2 ANAEROBIC DIGESTER GAS-TO-ELECTRICITY PROCESS............................................. 2 THE ADG-TO-ELECTRICITY PROGRAM INCENTIVE...

Despite its global abundance, Bacillus pumilus is poorly studied. The Fairview strain was obtained from a methanogenic anaerobic coal digester. The draft genome sequence was 3.8 Mbp long and contained 3,890 protein-coding genes. Like the SAFR-032 strain, it includes B. pumilus-specific proteins that likely confer enhanced resistance to environmental stresses.

Here, we report the draft genome sequence of Desulfuromonas acetexigens strain 2873, which was originally isolated from digester sludge from a sewage treatment plant in Germany. This bacterium is capable of anode respiration with high electrochemical activity in microbial electrochemical systems. The draft genome contains 3,376 predicted protein-coding genes and putative multiheme c-type cytoch...

Proses dekomposisi anaerobik melibatkan aktivitas mikrobiologi untuk menghasilkan biogas dengan komposisi gas tertentu. Komposisi terutama metana (CH4) menjadi dasar penentuan kualitas biogas. Penelitian ini menggunakan digester berkapasitas 50 liter menguji pengaruh waktu retensi hidrolik substrat (HRT) pada proses terhadap Campuran kotoran sapi dan air slurry 1:1 1:2 digunakan sebagai substra...

Methanogens are of great importance in carbon cycling and alternative energy production, but quantitation with culture-based methods is time-consuming and biased against methanogen groups that are difficult to cultivate in a laboratory. For these reasons, methanogens are typically studied through culture-independent molecular techniques. We developed a SYBR green I quantitative PCR (qPCR) assay...

BACKGROUND Enzymatic treatment of lignocellulosic material for increased biogas production has so far focused on pretreatment methods. However, often combinations of enzymes and different physicochemical treatments are necessary to achieve a desired effect. This need for additional energy and chemicals compromises the rationale of using enzymes for low energy treatment to promote biogas product...

The Anaerobic Digestion Pasteurization Latrine (ADPL) is a self-contained and energy neutral on-site sanitation system using anaerobic digestion of fecal sludge to generate biogas and then uses the biogas to pasteurize the digester effluent at 65-75°C to produce a safe effluent that can be reused locally as a fertilizer. Two ADPL systems were installed on residential plots with 17 and 35 reside...

* Corresponding author ([email protected]) Abstract: Antibiotic residues in animal waste from concentrated animal feeding operations are of considerable concern because of the potential development of antibiotic resistant bacteria in the environment and the effect of these residues on manure treatment systems. The objective of this study was to determine the effect of cefazolin (10 mg L) dur...

A strategy for detection of feedstock variations in a continuous pulp digester is presented. A Gaussian Radial Basis Function Neural Network is used to infer these unmeasured variations. The absence of plant data motivates the development of training set data. The efficiency and limitation of the approach is demonstrated with a first principles model.

Traditionally, wastewater treatment has been a combination of physical, biological, and chemical treatment methods. Physical methods of treatment include settling and sand filtration, biological methods include aerobic activated sludge, denitrification, and anaerobic digester treatment systems, while chemical methods include phosphate removal, dye and endocrine disruptor removal, and disinfecti...