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EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATIONUSING ALKALINE ASH

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 479-491 doi: 10.15302/J-FASE-2023480

Abstract:

● LFD was treated by fly ash-based chemical precipitation and CO2 mineralization.

Keywords： anaerobic digestion     chemical oxygen demand     fly ash     ion removal     total phosphate    

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Effect of the addition of organic carbon sources on nitrous oxide emission in anaerobic-aerobic (low dissolved oxygen) sequencing batch reactors

Hongjing LI, Xiurong CHEN, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 490-499 doi: 10.1007/s11783-010-0248-4

Abstract: respectively with a single municipal wastewater sample, sodium acetate, and a waste-activated sludge alkalinefermentation liquid as the additional carbon sources of real wastewater.

Keywords： dissolved oxygen)     nitrous oxide (N2O) emitting rate     municipal wastewater     waste activated sludge     alkalinefermentation liquid    

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Sludge fermentation liquid addition attained advanced nitrogen removal in low C/N ratio municipal wastewater

Shengjie Qiu, Jinjin Liu, Liang Zhang, Qiong Zhang, Yongzhen Peng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1318-x

Abstract: Abstract • Sludge fermentation liquid addition resulted in a high NAR of 97.4%. • Extra NH4+-N fromnitrogen removal of wastewater with low COD/N ratio could be enhanced by the addition of wasted sludge fermentationliquid (SFL), but the performance is usually limited by the introducing ammonium.

Keywords： Sludge fermentation liquid     Municipal wastewater     Advanced nitrogen removal     Short-cut nitrification     Partial    

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Isolation, identification and primary application of bacteria from putrid alkaline silica sol

Lijie REN,Ye HAN,Shuwen YANG,Xiqian TAN,Jin WANG,Xin ZHAO,Jie FAN,Ting DONG,Zhijiang ZHOU

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 330-339 doi: 10.1007/s11705-014-1419-9

Abstract: The putrefaction of alkaline silica sol was investigated in this paper.The total colony numbers in three alkaline silica sol samples were 1.47×10 , 1.25×10 , and 9.45×10 cfuTo explore the possibility of isolates in industrial application, their alkaline protease and amylaseFive strains produced alkaline protease, whereas two strains produced alkaline amylase.Thus, understanding of the putrefaction on alkaline silica sol would be beneficial for improving industrial

Keywords： putrid alkaline silica sol     alkaliphile     isolation and identification     sterilization     alkaline protease andalkaline amylase    

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Alkaline modification of ZSM-5 catalysts for methanol aromatization: The effect of the alkaline concentration

Zhenhao Wei,Tengfei Xia,Minghui Liu,Qingsheng Cao,Yarong Xu,Kake Zhu,Xuedong Zhu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 450-460 doi: 10.1007/s11705-015-1542-2

Abstract: The effects of alkaline treatment on the physical properties of ZSM-5 catalysts and on their activitiesA mild alkaline treatment (0.2 and 0.3 mol/L NaOH) created mesopores in the parent zeolite with no obviousIn addition, more mesopores were produced than with the mild alkaline treatment.Treatment with a higher alkaline concentration (0.5 mol/L) greatly reduced the number of Brønsted acidWhen the alkaline-treated catalysts were washed with acid, some of the porosity was restored and a slight

Keywords： aromatics     ZSM-5     alkaline treatment     dealumination     desilication     mesopores     methanol    

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Fabrication of high-performance pervaporation composite membrane for alkaline wastewater reclamation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 709-719 doi: 10.1007/s11705-021-2078-2

Abstract: The merit can be applied to treat alkaline wastewater if the membrane has superior alkali-resistance.

Keywords： pervaporation     alkaline solution concentration     polyethylene membrane     acid resistance     chlorine tolerance    

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A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1295-0

Abstract: Abstract • Capacitive biochar was produced from sewage sludge. • Seawater was proved to be an alternative activation agent. • Minerals vaporization increased the surface area of biochar. • Molten salts acted as natural templates for the development of porous structure. Sewage sludge is a potential precursor for biochar production, but its effective utilization involves costly activation steps. To modify biochar properties while ensuring cost-effectiveness, we examined the feasibility of using seawater as an agent to activate biochar produced from sewage sludge. In our proof-of-concept study, seawater was proven to be an effective activation agent for biochar production, achieving a surface area of 480.3 m2/g with hierarchical porosity distribution. Benefited from our design, the catalytic effect of seawater increased not only the surface area but also the graphitization degree of biochar when comparing the pyrolysis of sewage sludge without seawater. This leads to seawater activated biochar electrodes with lower resistance, higher capacitance of 113.9 F/g comparing with control groups without seawater. Leveraging the global increase in the salinity of groundwater, especially in coastal areas, these findings provide an opportunity for recovering a valuable carbon resource from sludge.

Keywords： Sewage sludge     Biochar     Seawater     Recourse recovery     Capacitor    

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Stability analysis of alkaline nitrobenzene-containing wastewater by a catalyzed Fe-Cu treatment process

FAN Jinhong, XU Wenying, GAO Tingyao, MA Luming

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 504-508 doi: 10.1007/s11783-007-0081-6

Abstract: Iron and copper bimetallic system (catalyzed Fe-Cu process) is a promising technology for alkaline nitrobenzene-containing

Keywords： technology     bimetallic     catalyzed     nitrobenzene-containing wastewater     efficiency    

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HQ in inland saline-alkaline water under different light qualities

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1479-2

Abstract:

• Optimal growth of Chlorella in inland saline-alkaline water

Keywords： Light quality     Chlorella     Inland saline-alkaline water     Fatty acid     Biodiesel property    

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Simultaneous saccharification and fermentation of wheat bran flour into ethanol using coculture of amylotic

K. Manikandan, T. Viruthagiri

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 240-249 doi: 10.1007/s11705-009-0205-6

Abstract: Studies on simultaneous saccharification and fermentation (SSF) of wheat bran flour, a grain millingcarried out with strains of starch digesting and nonstarch digesting and sugar fermenting in batch fermentation( / ) initial starch concentration gave the highest ethanol concentration of 23.1 g/L after 48 h of fermentationSimultaneous saccharificiation and fermentation of liquefied wheat bran starch to bioethanol was studied

Keywords： simultaneous saccharification and fermentation (SSF)     starch     coculture fermentation     statistical experimental    

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The role of lipids in fermentative propionate production from the co-fermentation of lipid and food waste

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1686-0

Abstract:

● Lipid can promote PA production on a target from food waste.

Keywords： Acidogenic fermentation     Microbial community     Volatile fatty acid     Propionate     Food waste     Lipid    

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Polysulfone and zirconia composite separators for alkaline water electrolysis

Li XU, Wei LI, Yan YOU, Shaoxing ZHANG, Yingchun ZHAO

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 154-161 doi: 10.1007/s11705-013-1331-8

Abstract: The novel composite separators composed of polysulfone and zirconia were prepared by phase inversion precipitation technique. This technique allows pre-evaporation time and extraction temperature to be varied in order to obtain optimal performances of the separators. In order to evaluate practical applicability of those composite separators, a small-scale electrolysis experimental apparatus was used to investigate the changes of cell voltage, gas purity and separator stability. The results revealed a decreased cell voltage compared to the conventional asbestos separators, and the gas purity and separator stability met the requirements for industrial use.

Keywords： phase inversion     separator     alkaline water electrolysis     mechanical and chemical stability    

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Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 543-553 doi: 10.1007/s11705-018-1778-8

Abstract: HZSM-5 with high specific surface area and much mesoporosity was obtained by the subsequent alkalineThe regulation of acid quantity was achieved by altering the concentration of alkaline.and desilication of Al-rich HZSM-5 zeolites became more effective using a combination of steam and alkalinetreatments than using alkaline treatment alone.

Keywords： steam treatment     alkaline treatment     hierarchical ZSM-5     methanol aromatization    

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Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 453-460 doi: 10.1007/s11705-012-1210-8

Abstract: Large waste water disposal was the major problem in microbial lipid fermentation because of low yieldIn this study, the repeated batch fermentation was investigated for reducing waste water generated inthe lipid fermentation of an oleaginous yeast CX1 strain.The waste fermentation broth was recycled in the next batch operation after the cells were separatedOur method provided a practical option for reducing the waste water generated from microbial lipid fermentation

Keywords： batch fermentation     microbial lipid     Trichosporon cutaneum CX1     flocculation     waste water    

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Simultaneous saccharification and fermentation of sweet potato powder for the production of ethanol under

Yinxiu CAO, Hongchi TIAN, Kun YAO, Yingjin YUAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 318-324 doi: 10.1007/s11705-010-1026-3

Abstract: Very high gravity (VHG) technology is an effective strategy for improving the efficiency of ethanol fermentationHowever, this technology has rarely been applied to sweet potatoes because of the high viscosity of their liquidAfter liquefaction and simultaneous saccharification and fermentation (SSF), the final ethanol concentration

Keywords： bioethanol     sweet potato     very high gravity     viscosity reduction     simultaneous saccharification and fermentation    

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Title Author Date Type Operation

EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATIONUSING ALKALINE ASH

Journal Article

Effect of the addition of organic carbon sources on nitrous oxide emission in anaerobic-aerobic (low dissolved oxygen) sequencing batch reactors

Hongjing LI, Xiurong CHEN, Yinguang CHEN

Journal Article

Sludge fermentation liquid addition attained advanced nitrogen removal in low C/N ratio municipal wastewater

Shengjie Qiu, Jinjin Liu, Liang Zhang, Qiong Zhang, Yongzhen Peng

Journal Article

Isolation, identification and primary application of bacteria from putrid alkaline silica sol

Lijie REN,Ye HAN,Shuwen YANG,Xiqian TAN,Jin WANG,Xin ZHAO,Jie FAN,Ting DONG,Zhijiang ZHOU

Journal Article

Alkaline modification of ZSM-5 catalysts for methanol aromatization: The effect of the alkaline concentration

Zhenhao Wei,Tengfei Xia,Minghui Liu,Qingsheng Cao,Yarong Xu,Kake Zhu,Xuedong Zhu

Journal Article

Fabrication of high-performance pervaporation composite membrane for alkaline wastewater reclamation

Journal Article

A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Journal Article

Stability analysis of alkaline nitrobenzene-containing wastewater by a catalyzed Fe-Cu treatment process

FAN Jinhong, XU Wenying, GAO Tingyao, MA Luming

Journal Article

HQ in inland saline-alkaline water under different light qualities

Journal Article

Simultaneous saccharification and fermentation of wheat bran flour into ethanol using coculture of amylotic

K. Manikandan, T. Viruthagiri

Journal Article

The role of lipids in fermentative propionate production from the co-fermentation of lipid and food waste

Journal Article

Polysulfone and zirconia composite separators for alkaline water electrolysis

Li XU, Wei LI, Yan YOU, Shaoxing ZHANG, Yingchun ZHAO

Journal Article

Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Journal Article

Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Journal Article

Simultaneous saccharification and fermentation of sweet potato powder for the production of ethanol under

Yinxiu CAO, Hongchi TIAN, Kun YAO, Yingjin YUAN

Journal Article