Performance Comparison for an SI Engine with Treated and Raw Biogas ab 35.99 € als Taschenbuch: . Aus dem Bereich: Bücher, Wissenschaft, Technik,
The need for protection of coastal areas is the background to the monitoring of environmental damage, which is one part of environmental management. In Indonesia, this is regulated in Laws, Government Regulations and Ministry of Environment Regulations. This paper focuses on management of Organic Waste, Plastic Waste, Hazardous and Toxic Waste (B3), Electronic Waste. Organic Waste can be treated into organic fertilizer and biogas fuel. Plastic Waste can be manage by insenerator, ATM Plastic garbage, and processing plan. Waste, Hazardous and Toxic Waste can be treated in simply or in a modern way. Simple B3 waste treatment can use Moringa oleifera seed powder which contains the active substance rhamnosyloxy-benzilisothioc. Modern B3 waste treatment uses wastewater management (IPAL), through the stages of primary treatment, secondary treatment, and tertiary treatment. Electronic Waste can be treated by no combustion, but by recycled. Also discussed about both of management waste in Japan, Germany, the United Kingdom, and the European Union.
Anaerobic digestion of biomass for biogas production has been developed for a long period of time. In recent years, anaerobic co-digestion in which two or more substrates are treated together has been applied worldwide since the biogas production is improved through this combined process. The book is divided into two parts. Chapter one introduces the biochemical process of anaerobic digestion, anaerobic digesters, feedstocks and recent studies in anaerobic co-digestion. Chapter two illustrates a batch study of anaerobic co-digestion of swine wastewater with switchgrass and wheat straw under mesophilic conditions and studies the effect of total solids concentration on methane production. The book will be a good reference for researchers in related areas.
Deposition at landfill has been compared to energy recovery, recycling of material (plastic and cardboard) and recycling of nutrients (in food waste). Environmental impact, fuel consumption and costs are calculated for the entire lifecycle from the households, until the waste is treated and the by-products have been taken care of. To stop landfill disposal is the most important measure to take to decrease environmental impact. Instead the waste should be used as a resource, thereby substituting production from virgin resources. A better alternative to landfill disposal is incineration. Recycling of plastic has slightly less environmental impact and energy consumption than incineration. Cardboard recycling is comparable to incineration. Source separation of food waste may increase transport emissions due to intensified collection. There are environmental advantages if the waste is digested and the biogas substitutes diesel in busses. Composting has no environmental advantages compared to incineration. The recycling options are more expensive than incineration. The increased cost must be seen in relation to the environmental benefits and decreased energy use.
A Wastewater Treatment Plant (WWTP) is a municipal service that any city should consider as part of its Water and Wastewater Management Plan. Further, it is well known that there are different technologies that allow to reuse and to discharge treated wastewater (WW) into surface water. Nonetheless, one of the main by-products of any WWTP is the so called sewer sludge, which has the potential to produce energy through anaerobic digestion or simply to be stabilized and converted into harmless matter for the environment. Therefore, pre-treatment of sludge has become an essential process in order to enhance the methane production, if an anaerobic digestion is part of the WWTP. Some of the sludge pre-treatments technologies comprise thermal, chemical and mechanical techniques, including their subdividing methods and combination among each other, these pre-treatments enhance the biogas production, by hydrolysing the organic matters present in sludge while reducing the total amount of solid residue of the anaerobic digestion process.
The textbook "Treatment Of Distillery Spentwash With PUF & PVC In Anaerobic Reactor" provides the knowledge about the treatment options available to treat a distillery industry wastewater i.e. spentwash. In this textbook the distillery spentwash is treated in anaerobic stationary downflow reactors with two different packing materials viz. Polyurethane Foam (PUF) and Polyvinyl Chloride (PVC). The spentwash is treated with these packing materials in the reactor and the treatment efficiency is analysed by means of various physico-chemical characteristics like pH, Temperature, COD, BOD, Total and Suspended Solids and Biogas production. The textbook provides thorough knowledge about the treatment technique adopted and the fabrication of lab scale treatment unit for the treatment of distillery spentwash. The textbook also enlight us with various methods adopted to treat the industrial wastewaters from various authors in literature survey conducted by the authors.
The present book is a result of experimental work carried out on a spark- ignition engine fueled with Bio-gas. The biogas was obtained by the anaerobic digestion of Gobar(Cow-Dung). The investigations are made to determine the difference in the performance of the engine due the the purification of raw bio-gas. It is a good work carried out by the author which can further be studied by using various other biogas cleaning methods.
This study evaluates the change in particle size of dry-milling corn ethanol co-products by using ultrasonic energy to increase the production of the biogas from the anaerobic digestion of ethanol dry-milling co-products, namely: dried distiller grain with solubles (DDGS), solids, thin stillage, and corn-syrup. The co-product samples were treated with various ultrasonic conditions and compared to non-treated samples (control sample). The ultrasonic amplitude was varied from 52.8 µmpp to 160 µmpp and the sonication time was varied from 10 to 50s. The samples were characterized with scanning electron and optical microscopy (SEM, OM) and particle distribution analysis (PDA). It was found that with solid/liquid suspensions (DDGS, solids), there was a significant decrease in particle size, increasing the surface area to volume ratio, to possibly enhance biogas yield during anaerobic digestion of these materials. In the case of thin stillage and corn syrup, the results were surprising in that an increase in particle size was seen.
The main focus of this book is on energy efficient strategies for sludge management, with special focus on anaerobic digestion which produces biogas to replace fossil fuels. Pulp and paper mill sludge is currently treated as a poor quality biofuel and some mills treat it solely as a disposal problem. Our results show that electricity used for aerators in the wastewater treatment plant should be kept to the minimum required for sufficient reduction of dissolved organics. If more electricity is used, i.e. if more air is used for wastewater treatment, this will reduce the energy value of the sludge as the bio-sludge will be degraded. Biogas production using anaerobic co-digestion of pulp- and paper mill sludge together with either municipal wastewater treatment sludge or with manure and grass silage has been studied from several perspectives. It was found that anaerobic digestion is a feasible option for pulp and paper mill sludge management, provided that co-digestion with other substrates is used for nutrient supplementation.