As world is going towards renewable energy sources, microbial fuel cell getting attention nowadays. In microbial fuel cell biomass is utilize and give energy (electricity), and also a good option for treatment for waste water. Fuel recovery from sewage sludge is a promising energy production method, which can simultaneously address energy issue and environmental concerns associated with waste t...

This paper investigates the use of shop-floor ferrous scrap that contains iron ore as a raw material for purpose making steel products through an in situ carbothermic reduction. The technique powder metallurgy (PM) was used studying reduction followed by densification during sintering. Two sources oxide—ferrous grinding-sludge and ore—and three carbonaceous material—graphite, charcoal, carbon b...

The main objective of this work was anaerobic digestion of maize grains and maize silage and biogas production from these crops. Maize grains were treated using one-stage and two-stage anaerobic techniques; using hydrolysis and acidification as the first stage and methanogenesis as the second stage. Processing nonacidified maize grains in an anaerobic reactor is more stable, though the anaerobi...

The present study evaluated different sludge-reduction mechanisms in the oxic-settling-anaerobic (OSA) process terms of their effects on methane productivity by anaerobic digestion sewage sludge. Two layouts were investigated for sludge return from an side-stream reactor (ASSR) to anoxic (scheme A) or aerobic B) a pre-denitrification plant. Biochemical methane-potential (BMP) assays performed e...

This pilot scale study aims to test the effectiveness of an innovative compact biological system (SBBGR - Sequencing Batch Biofilter Granular Reactor) for treating municipal wastewater in tourist areas characterised by intense seasonal water demand and wastewater discharge. The results obtained after a long term operation of 463 days have shown that the proposed system is able to assure average...

Ozone is known to be effective for achieving positive treatment effects on sludge characteristics. One of these effects is the reduction in excess sludge generation in wastewater treatment operations. This application is known for many years and full scale plants are installed and in operation. The economical success of this application strongly depends on the required ozone dose to reduce a ce...

Excess sludge reduction has been a research hotspot for long time. Ultrasonic treatment of excess was an efficient and green pretreatment method, also can be combined with the addition oxidants. To improve effect ultrasound on destruction, hydrogen peroxide (H2O2) added to examine results in current study. The effects ultrasound/hydrogen system release organic matter during destruction process ...