wastewater biofuel Articles

  • Algal biofuels are no energy panacea

    Algal biofuels, like crops, demand land, water, fertilisers, pesticides and inputs that are costly for India, says Hoysall Chanakya Of late, there is heady euphoria over 'green' algal biofuels that are dangled as a panacea for developing countries such as India. While it is true that algal biofuels ...


    By SciDev.Net

  • Algal biofuels from wastewater treatment high rate algal ponds

    This paper examines the potential of algae biofuel production in conjunction with wastewater treatment. Current technology for algal wastewater treatment uses facultative ponds, however, these ponds have low productivity (∼10 tonnes/ha.y), are not amenable to cultivating single algal species, require chemical flocculation or other expensive processes for algal harvest, and do not provide ...


    By IWA Publishing

  • Using treated and disinfected wastewater to grow biofuel plants on barren lands

    The discharge of treated and disinfected wastewater from municipal and private treatment plants to receiving waters, be they groundwater or surface waters, is increasingly unacceptable due to the presence of man-made chemicals and pharmaceuticals.  The use of wastewater to ...


    By IWA Publishing

  • Portable IR analyzers: the ideal measurement solution for biofuels blend quality and wastewater testing

    Two challenges facing the biofuels industry involve compliance with blend quality standards and wastewater regulations. According to a study done by the National Renewable Energy Laboratory, 1 the chief problem found with biodiesel blends was inaccurate blend ratios. Retail customers and fleet managers do not typically worry about whether the blend ratio is correct until a problem occurs. For ...


    By Spectro Scientific

  • Fat, oil and grease waste from municipal wastewater: characterization, activation and sustainable conversion into biofuel

    Fat, oil and grease (FOG) recovered by the oil/water separator of a wastewater treatment plant (WWTP) were sampled, characterized, activated and converted into biofuel. Free acids (50–55%) and fatty soaps (26–32%) not only composed the main components, but they were also easily separable from the starting waste. The respective free fatty acid profiles were ...


    By IWA Publishing

  • Domestic wastewater treatment and biofuel production by using microalga Scenedesmus sp. ZTY1

    Cultivation of microalgae for biomass production is a promising way to dispose of wastewater and recover nutrients simultaneously. The properties of nutrient removal and biomass production in domestic wastewater of a newly isolated microalga Scenedesmus sp. ZTY1 were investigated in this study. Scenedesmus sp. ZTY1, which was isolated from a wastewater treatment plant in ...


    By IWA Publishing

  • Using wastewater and high-rate algal ponds for nutrient removal and the production of bioenergy and biofuels

    This paper projects a positive outcome for large-scale algal biofuel and energy production when wastewater treatment is the primary goal. Such a view arises partly from a recent change in emphasis in wastewater treatment technology, from simply oxidising the organic matter in the waste (i.e. removing the biological oxygen demand) to removing the nutrients – specifically nitrogen and ...


    By IWA Publishing

  • Algal production in wastewater treatment high rate algal ponds for potential biofuel use

    Wastewater treatment High Rate Algal Ponds with CO2 addition could provide cost-effective and efficient tertiary-level wastewater treatment with the co-benefit of algal biomass production for biofuel use. Wastewater grown algal biomass can have a lipid content of 10–30% of dry weight, which could be used to make biodiesel. This research investigated algal biomass and total lipid production by two ...


    By IWA Publishing

  • Grease Processing Facility Wastewater

    Yellow & Brown Grease Processing for Biofuel This facility takes in yellow and brown grease and processes it to recover the organics for biofuel. The resulting wastewater generated is shown below on the left. The pH quickly drops to 4.67 as the organics anaerobically decompose thereby dropping the pH. Caustic was used to raise the pH to 6.4 and the addition of ...


    By Integrated Engineers Inc.

  • Microalgae as a sustainable alternative for wastewater treatment

    Thanks to the threats posed to human health and the environment, and the economic costs of its treatment, wastewater from domestic, industrial and agricultural processes has been considered a serious problem for a long time. However, a paradigm shift in the past few years has led to a new concept of wastewater, not as a problem but as a source of energy and other precious resources, including ...


    By IWA Publishing

  • Oil skimmers solutions guide: wastewater treatment industry

    Growing Snack-Food Manufacturer Reduces Costs, Recycles Waste A privately held snack-food manufacturer in Ohio expected to increase production of potato chips by 20%, to about 72 million pounds a year. While more potato chips would mean more profits, it also would mean more oil-laden wastewater from washing the potatoes and the fryers used to cook them. PROCESS: When ...


    By Oil Skimmers, Inc.

  • Removal performance of lignin compound from simulated pulping wastewater using emulsion liquid membrane process

    Removal of lignin from pulping wastewater has considerable interest due to high market value in conversion to external biofuel and specialty chemicals. Thus, it is important to remove lignin for increasing revenue while reducing environmental problems. Removal of lignin from simulated pulping wastewater using emulsion liquid membrane (ELM) was proposed in this study. Thereby, optimum removal ...


    By Inderscience Publishers

  • Adding value to wastewater by resource recovery and reformulation as growth media: current prospects and potential

    Wastewater, despite being a serious environmental constraint, has been identified as a source of valuable commodities including phosphate, ammonia, metal ions and volatile fatty acids. Using low-cost physical pre-treatments, filtration technology gives the opportunity of recovering materials in purified concentrated liquid form and purified water. Filtration also allows manipulation of the ...


    By IWA Publishing

  • Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent

    The production of different species of microalgae in consortium with other micro-organisms from wastewaters may represent an alternative process, to reduce the costs, for obtaining biofuels. The aim of this study was to evaluate the influence of pre-ultraviolet disinfection (UV) in the production of lipids from biomass produced in high rate ponds. Two high rate algal ponds were evaluated: a pond ...


    By IWA Publishing

  • Dewatering as a non-toxic control of nuisance midge larvae in algal wastewater treatment floways

    Attached-algae floways have tremendous potential for use in wastewater treatment because natural algal communities show high nutrient removal efficiencies, have low operating costs, and are easy to maintain. Algal wastewater floways may also serve as a sustainable option for producing renewable energy because algae grow rapidly, are easily harvested, and can serve as a source of biomass for ...


    By IWA Publishing

  • Development of algae–based technology to mitigate energy crisis in coal mining areas: a critical review

    Algal biofuels around the world represent a sustainable pathway to meet increasing demand for fuel and clean energy with reduced environmental impact. More than half of that mass consists of lipids or triacylglycerides which are also found in vegetable oils and are used to produce such advanced biofuels as biodiesel, green diesel, green gasoline and green jet fuel. Algal remediation technology ...


    By Inderscience Publishers

  • Water-saving analysis on an effective water reuse system in biodiesel feedstock production based on Chlorella zofingiensis fed-batch cultivation

    The micralgae-based biofuel obtained from dairy wastewater (DWW) is considered a promising source of energy. However, this process consumes water due to the concentration of wastewater being normally too high for some micoralgae cultivation, and dilution is always needed. In this work, the cultivation of microalgae has been examined in non-recirculated water (NR) and recirculated water systems ...


    By IWA Publishing

  • Innovative Ammonia Control case study

    Ammonia has increasingly become more of a regulatory concern. Ammonia emissions into the atmosphere have been linked to the formation of fine particulate matter, while ammonia emissions in wastewater are restricted because of the negative affect the chemical has on rivers, lake, and aquifers. Many sources of biofuels contain ammonia or can create ammonia during processing. The following case ...

  • Simple way to reduce costs and increase profit

    Packaged-food producers frequently use and then must discard large batches of cooking oil used in their process. Usually they drain most of the oil directly from equipment, but they must remove residual oil by regularly washing fryers, ovens, conveyors, and other machinery. The oil mixes with the wash water and becomes part of the plants wastewater stream. Having oil in wastewater complicates the ...


    By Oil Skimmers, Inc.

  • Bio-fuels- Anaerobic digestion

    Anaerobic digestion is a series of processes in which micro organisms break down biodegradable material in the absence of oxygen. It is widely used to treat wastewater sludges and organic (agricultural) wastes.  As part of an integrated waste management system, anaerobic digestion reduces the emission of gas into the atmosphere. Anaerobic digestion is a renewable energy source because the ...


    By Triangle Ltd

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