Showing papers in "Bioresource Technology in 2014"

TL;DR: A review of recent applications of biochars, produced from biomass pyrolysis (slow and fast), in water and wastewater treatment, and a few recommendations for further research have been made in the area of biochar development for application to water filtration.

TL;DR: Existing knowledge on various aspects of the fundamentals and applications of biosorption are summarized and the obstacles to commercial success and future perspectives are critically reviewed.

TL;DR: In the batch experiments of cadmium(II) adsorption, the removal capacity of biochars improved under higher temperature, especially at 800°C and 900°C even one order of magnitude higher than that of the commercial activated carbon.

TL;DR: This article provides a comprehensive review of recent findings on performances, applications and chemistry of algae for sequestration of heavy metals, and presents the theoretical simulation tools for biosorption equilibrium and kinetics.

TL;DR: The metal sorption capacities, influence of intrinsic nature of metal ions, pH and contact time, desorbing agents, isotherm and kinetics models, biosorption mechanisms were discussed.

TL;DR: Most frequently used experimental designs are described, concerning their limitations and typical applications, and ways to determine the accuracy and the significance of model fitting for both methodologies described herein are presented.

TL;DR: The results showed that food waste hydrolysis increased obviously when Inoculum AN was used relative to Inocula AE at any pH investigated, and uncontrolled pH was higher than that at other pHs when either inoculum was used.

TL;DR: This paper has reviewed the nutrients removal and recovery in various BES including microbial fuel cells and microbial electrolysis cells, discussed the influence factors and potential problems, and identified the key challenges for nitrogen and phosphorus removal/recovery in a BES.

TL;DR: The availability and bioenergy potentials of the current biomass feedstocks are reviewed and key technical challenges and opportunities of the lignocellulosic biomass-to-bioenergy production are discussed in comparison with the first generation technologies.

TL;DR: In this paper, the efficiency of each biosorbent has been discussed with respect to the operating conditions (e.g., temperature, hydraulic residence time, initial metal concentration, biosorbents particle size and its dosage), chemical modification on sorption capacity and preparation methods, as well as thermodynamics and kinetics.

TL;DR: Results revealed that the nitrogen limitation and sequential nitrogen starvation conditions significantly decreases the photosynthetic activity as well as crude protein content in the organism, while dry cell weight and biomass productivity are largely unaffected up to nitrate concentration of about 30.87mg/L.

TL;DR: Characterization of the resulted ZVI-biochar composites (BBCF) indicated that chitosan effectively soldered the iron particles onto carbonaceous surfaces within the biochar pore networks.

TL;DR: The enhanced surface area of the MPC, as well as its graphite-like structure, may contribute to the adsorption capacity of TC, which could be effectively separated by applying a magnetic field.

TL;DR: The addition of 35% SMC and 20% BC to GW and the two-stage co-composting technology resulted in the production of the highest quality compost product in only 24 days rather than the 90-270 days required with traditional composting.

TL;DR: The results herein revealed that the PEI modified biochar had a good potential as a suitable material for sorption and detoxification of Cr(VI) from aqueous solution.

TL;DR: The ability of carbon cloth to accelerate DIET should be considered in anaerobic digester designs that incorporate carbon cloth, although the syntrophic partners were too far apart for cell-to-cell biological electrical connections to be feasible.

TL;DR: GC-MS results indicated that the bio-crude oil contained hydrocarbons and fatty acids, while the aqueous product was rich in organic acids and cyclic amines, which was lower than the typical range of 25%-53% from previous studies.

TL;DR: Physicochemical analysis results showed that hazelnut husk has a high calorimetric value and high volatile matter content and it was concluded that this biomass can become useful source of energy or chemicals.

TL;DR: Experimental and modeling investigations were conducted to examine the effect of biochars pyrolytically produced from municipal solid wastes on removing aqueous As(V) before and after activated by 2M KOH solution.

TL;DR: This paper summarises the state of the art of different pretreatment techniques used for improving microalgae anaerobic biodegradability and concludes that all of them are effective at increasing biomass solubilization and methane yield.

TL;DR: SPV colorimetric method was employed for a rapid quantification of intracellular lipid contents within Chlorella sp.

TL;DR: The risk analysis was performed to study the bioavailability and eco-toxicity of heavy metals in biochar obtained from pyrolysis of sludge of pulp and paper mill effluent treatment plant and it was observed that the leaching potential ofheavy metals decreased after pyroglysis and the best results were obtained for biochar pyroallyzed at 700°C.

TL;DR: Kinetic and microbiota analyses revealed that pyrochar can prevent mild ammonia inhibition, and future research should pay attention to biochar-microbe interactions and the effects in continuously-fed anaerobic digesters.

TL;DR: Wood-based biochars were used as microbial fuel cell electrodes to significantly reduce cost and carbon footprint and reduced the energy andcarbon footprint associated with electrode manufacturing and the disposal of which could have additional agronomic benefits.

TL;DR: Steam activated tea waste biochar could be a promising remedy of SMT removal from water according to the primary mechanisms governing SMT retention by biochars.

TL;DR: The high functional redundancy in bacterial community integrated with acetoclastic methanogenesis in MR resulted in its better performance; whereas delicate interactions between hydrogen-producer and hydrogenotrophic methanogens in TR were much more prone to disruption.

TL;DR: Results indicate that fungal consortium with weekly turning frequency of open windrows were more cost-effective in comparison with other technologies for efficient composting and yield safe end products.

TL;DR: This review aims to clarify why large discrepancies existed for different EPS-metal systems through systematically exploring into the adsorption mechanisms and influential factors, and to offer some implications for advancing the implementation of metal biosorption technologies.

TL;DR: It is suggested that algae composition greatly influences oil yield and quality, but may not be in similar effects to that of conventional HTL.

TL;DR: Although the mass yield for the organic fraction was only about 25% above 500°C, biochar was the primary product of pyrolysis containing 40% of energy and 45% of carbon from the straw, since the sum of energy yield was about 60%.