• potential and optimization of two-phase anaerobic

    Potential and optimization of two-phase anaerobic

    Oil conversion in the two-phase system. Oil content of the refinery waste activated sludge was 5.3% g/g-TS. After two-phase anaerobic digestion, 1.2% g/g-TS of oil were left in the sludge residue. The oil components before and after two-phase anaerobic digestion were subjected to GC-MS, shown in Fig.

  • (pdf) potential and optimization of two-phase anaerobic

    (PDF) Potential and optimization of two-phase anaerobic

    Two-phase anaerobic digestion of oil refinery waste activated sludge was studied for the first time. Thermal pretreatment under 170 °C is effective on sludge solubilization.

  • potential and optimization of two-phase anaerobic

    Potential and optimization of two-phase anaerobic

    Syntrophic bacteria in the family Porphyromonadaceae and the genus Anaerobranca provide acetate for methanogen. The results demonstrated the potential and operating condition of two-phase anaerobic digestion in treatment of oil refinery waste activated sludge.

  • the pressure effects on two-phase anaerobic digestion

    The pressure effects on two-phase anaerobic digestion

    In light of the good process stability, the two-phase pressurized anaerobic digestion might allow operation under even higher pressure (more than 9 bar), as well as higher organic loading rate (more than 5 kgCOD m −3 d −1).

  • optimizing pre-treatment conditions for anaerobic co

    Optimizing pre-treatment conditions for anaerobic co

    In this study, the optimum conditions of thermal-alkali pre-treatment and the performance of ammonia stripping were investigated for improving solubilization efficiency and methane yield in the anaerobic co-digestion of food waste (FW) and sewage sludge (SS).

  • cultivating conditions optimization of the anaerobic

    Cultivating conditions optimization of the anaerobic

    e-mail: radulybotond@sapientia.siculorum.ro 1 Cultivating conditions optimization of the anaerobic digestion of corn ethanol distillery residuals using response surface methodology

  • optimization of micro-aeration intensity in acidogenic

    Optimization of micro-aeration intensity in acidogenic

    During the acidogenic phase of an anaerobic digestion, a large consortium of microorganisms that are capable of solubilizing organic substrates such as carbohydrates, proteins and lipids, work together and produce organic acids (i.e., lactic, acetic, butyric and propionic acids, etc.).

  • (pdf) two-phase anaerobic digestion processes: a review

    (PDF) Two-phase anaerobic digestion processes: A review

    activities in the area of two-phase anaerobic digestion processes. The acid phase and the methane phase are ®rst evaluated, individually, from microbiological, kinetic and modelling , process optimi-

  • potential and optimization of two-phase anaerobic digestion of oil

    Potential and optimization of two-phase anaerobic digestion of oil

    Oil refinery waste activated sludge produced from oil wastewater biological treatment is a major industrial sludge. Two-phase anaerobic digestion of oil refinery waste activated sludge was studied for the first time. Thermal pretreatment under 170 °C is effective on sludge solubilization.

  • two-phase anaerobic co-digestion of used vegetable oils’ wastes

    Two-phase anaerobic co-digestion of used vegetable oils’ wastes

    The two-phase digestion system showed good stability, which was mainly attributed to the strong buffering capacity with the two-phase system and the high alkalinity fromKeywords. Co-digestion Hydraulic retention time Oily waste Pig manure Two-phase anaerobic reactor Used vegetable oil.

  • (pdf) two phase anaerobic digestion process: a review

    (PDF) Two Phase Anaerobic Digestion Process: A Review

    Two-phase anaerobic digestion processes. Acidogenesis of municipal primary sludge and a.additional signi®cant parameters governing VFA. production for performance optimization of the.ventional single-phase anaerobic digestion processes. in terms of bacterial population levels and

  • two-phase anaerobic digestion | anaerobic digestion

    Two-phase Anaerobic Digestion | Anaerobic Digestion

    A two-phase, wet anaerobic digestion process was tested at laboratory scale using mechanically pre-treated municipal solid waste (MSW) as thesub-stances mechanically pre-treated The expected improved contained in the inflow, the MSW as the substrate. performance of the optimization of the

  • enzymatic monitoring and control of a two-phase batch digester

    Enzymatic monitoring and control of a two-phase batch digester

    Scheme of the investigated two-phase anaerobic digestion system. System I consisted of 0.22 m 3 percolators (fixed bed reactors) containing a separate collecting tank of the same capacity and basins 1 and 2, both with a capacity of 0.8 m 3 . Percolators of system II sized 40 m 3 , their separate collecting

  • effect of ultrasonic pretreatment on biomethane potential

    Effect of Ultrasonic Pretreatment on Biomethane Potential

    Anaerobic digestion of solid wastes is an attractive and established option for solid wastesThe feasibility of the anaerobic digestion of the two-phase OMSW has been already shown [3, 5, 6]Ultrasonic pretreatment consists of the application of cyclic sound pressure with a variable frequency

  • what is anaerobic digestion - the biogas biomethane process

    What is Anaerobic Digestion - The Biogas Biomethane Process

    Anaerobic Digestion involves using the natural process wherein organic matter is broken down by germs, in the absence of oxygen, inside a sealed tank.Anaerobic digestion (AD) is a biological process in which micro-organisms break down organic materials in the absence of oxygen and form

  • what is anaerobic digestion?

    What is Anaerobic Digestion?

    Anaerobic digestion is the process by which organic matter such as animal or food waste is broken down to produce biogas for electricity and biofertiliser.This process happens in the absence of oxygen in a sealed, oxygen-free tank called an anaerobic digester.

  • low oil pressure causes, symptoms & solutions

    Low Oil Pressure Causes, Symptoms & Solutions

    Low oil pressure is really bad for any car engine and if the oil pressure gets too low, it can damage your engine with permanent damages.There are several causes of low oil pressure at idle. Down below you will find a list of the most common causes.

  • composting vs. anaerobic digestion, and the potential of biogas

    Composting vs. Anaerobic Digestion, and the potential of Biogas

    Composting and anaerobic digestion has been naturally happening since the Earth started to spin. It is nothing new as evidence shows even Greeks and Romans madeThe main difference between the two- composting and anaerobic digestion- is oxygen. Aerobic being with air and Anaerobic without.