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A cycle spray flow-through reactor was designed and used to pretreat corn stover in dilute sulfuric acid medium. The dilute sulfuric acid cycle spray flow-through (DCF) process enhanced xylose sugar yields and cellulose digestibility while increasing the removal of lignin. Within the DCF system, the xylose sugar yields of 90-93% could be achieved for corn(More)
Bacillus sp. LY, with heterotrophic nitrogen removal ability, can biodegrade many kinds of toxic organic pollutants. The study illuminates that Bacillus sp. LY has potential advantages on the biodegradation of toxic organic pollutants combined with heterotrophic nitrogen removal. When using typical toxic organic pollutants, such as phenol, catechol,(More)
Anaerobic biodegradation behavior of nonylphenol polyethoxylates (NPEOs) was investigated. Results showed that terminal electron acceptors, organic matters, initial concentration, and temperature had great influence on the anaerobic biodegradation of NPEOs. Anaerobic biodegradation of NPEOs could be enhanced by adding sulfate or nitrate while this process(More)
Biodegradation of nonylphenol ethoxylates (NPEOs) by Bacillus sp. LY, with heterotrophic nitrification ability was investigated. The results showed that NPEOs were readily degraded by Bacillus sp. LY with more than 80% of the total NPEOs being removed within 7 days. Heterotrophic nitrogen removal occurred simultaneously during the biodegradation period of(More)
Cellulose powder was grafted with the vinyl monomer glycidyl methacrylate using ceric ammonium nitrate as initiator and was further derived with β-CD and quaternary ammonium groups to build Cell-g-GMA-β-CDN(+) adsorbent. Epoxy cellulose was made up of Cell-g-GMA and Cell-hydro-g-GMA, and was found to contain 3.71 mmol g(-1) epoxy groups. The adsorption(More)
Biodegradation behavior of nonylphenol polyethoxylates (NPEOs) under Fe(III)-reducing conditions was investigated. The study demonstrated that NPEOs could be rapidly biodegraded under Fe(III)-reducing conditions. Almost 60% of the total NPEOs were removed within three days and the maximum biodegradation rate was 34.95+/-0.84 microM d(-1). NPEOs were(More)
The biodegradation of nonylphenol polyethoxylates (NPEOs) was studied under three different reductive conditions (methanogenesis, denitrification, and desulfuration conditions). Effects of organic matter and temperature on the biodegradation of NPEOs were also studied. The results showed that NP9EO could be rapidly biodegraded under three different(More)
Biodegradation of nonylphenol polyethoxylates (NPEOs) by denitrifying activated sludge was investigated. The results showed that NPEOs were readily degraded in the denitrifying activated sludge process. Organic substance, initial concentration, and temperature had great influence on biodegradation of NPEOs in the denitrifying activated sludge process while(More)
This study compared the solar energy utilization of a closed microalgae-based bio-loop for energy efficient production of biogas with fertilizer recovery against that of a stand-alone photovoltaic (PV) system. The comparison was made from the perspective of broad life cycle assessment, simultaneously taking exergy to be the functional unit. The results(More)
The Huai River is one of the major drinking water resources in Bengbu City of China's eastern Anhui Province. The study focused on extracting information for spatial distributions of heavy metal(loid)s (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) based on the contents of pollutants in 20 surface sediments. Geoaccumulation index and Hakanson potential ecological(More)