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A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 272-279 doi: 10.1007/s11783-010-0234-x

Abstract: A hybrid membrane process for simultaneous sludge thickening and digestion (MSTD) was studied.The thickening and digestion effects in the MSTD were further analyzed based on a mass balance analysis

Keywords： membrane filtration     sludge digestion     sludge thickening     waste activated sludge    

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High-solid anaerobic digestion of sewage sludge: achievements and perspectives

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1364-4

Abstract:

• High-solid anaerobic digestion (HS-AD) of sewage sludge (SS) is overviewed

Keywords： High-solid effect     Anaerobic fermentation     Methane production     Biodegradability     Sludge treatment    

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Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1108-1116 doi: 10.1007/s11783-015-0806-x

Abstract: High-solids anaerobic digestion of sewage sludge was a promising process, but high solid concentrationThe results showed that TS 6% was the boundary between low-solids and high-solids anaerobic digestionThe performance of anaerobic digestion was directly determined by the efficiency of mass transfer, andthe relation between methane yield and sludge diffusive coefficients was well described by a power functionThus, the increasing TS resulted in an exponential increase in sludge viscosity but an exponential decrease

Keywords： anaerobic digestion     methane     sewage sludge     volatile fatty acids     free ammonia    

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Anaerobic digestion of sludge by different pretreatments: Changes of amino acids and microbial community

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1458-7

Abstract:

•Tryptophan protein, and aromatic protein I/II were the key identified proteins.

Keywords： Sludge pretreatments     Dissolved organic nitrogen     Proteins     Amino acids     Structural equation model     Metagenomic    

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Distribution and removal of antibiotic resistance genes during anaerobic sludge digestion with alkaline

Mengli Wang, Ruying Li, Qing Zhao

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 3, doi: 10.1007/s11783-019-1127-2

Abstract:

Sludge digestion is critical to control the spread of ARGs from wastewater

Keywords： Tetracycline resistance genes     Sulfonamide resistance genes     16S rRNA gene     Sludge pretreatment     Anaerobicsludge digestion    

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Comparison of different valent iron on anaerobic sludge digestion: Focusing on oxidation reduction potential

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1514-3

Abstract:

• ORP value from −278.71 to −379.80 mV showed indiscernible effects on methane yield.

Keywords： Enhanced anaerobic sludge digestion     Different iron valence     Oxidation reduction potential     Dissolved    

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Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1050-y

Abstract:

The isolated bacteria accelerated the anaerobic digestion

Keywords： Anaerobic digestion     Waste activated sludge     Acid-producing bacteria     Bacillus coagulans    

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Increasing the performance of anaerobic digestion: Pilot scale experimental study for thermal hydrolysisof mixed sludge

S.I. PEREZ-ELVIRA, M. FDZ-POLANCO, F. FDZ-POLANCO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 135-141 doi: 10.1007/s11783-010-0024-5

Abstract: performance of a pilot plant operation combining thermal hydrolysis (170°C, 30 min) and anaerobic digestion(AD) was studied, determining the main properties for samples of fresh mixed sludge, hydrolyzed sludge, and dewaterability) and its impact on the anaerobic digestion performance (biodegradability, volatilea 70% higher total solids concentration in the feed to anaerobic digestion.The digestion of this sludge generates 40% more biogas in half the time, due to the higher solids removal

Keywords： anaerobic digestion (AD)     biogas     performance     sludge     thermal hydrolysis    

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Thermal Hydrolysis of Wastewater Sludge Followed by Fungal Fermentation for Organic Recovery and Hyphae Article

Jia-jin Liang, Bing Li, Lei Wen, Ruo-hong Li, Xiao-yan Li

Engineering 2021, Volume 7, Issue 2,   Pages 203-211 doi: 10.1016/j.eng.2020.09.002

Abstract:

Wastewater sludge creates a difficult environmental problem for many large cities.This study developed a three-phase innovative strategy for sludge treatment and reduction, includingthermal hydrolysis, fungal fermentation, and anaerobic digestion.Combining fungal fermentation and anaerobic digestion, the overall organic utilization efficiency canexceed 75% for the liquor of sludge treated at 160 °C.

Keywords： Wastewater sludge     Thermal hydrolysis     Fungal fermentation     Hyphae fibers     Anaerobic digestion     Sludge    

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Sulfate digestion process for high purity TiO

T. A. LASHEEN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 155-160 doi: 10.1007/s11705-009-0005-z

Abstract: A titania slag product of Rosetta ilmenite assaying 72% TiO is treated by the sulfate process option of the pigmentary TiO manufacture. The relevant factors of acid concentration, particle size, slag/acid ratio besides the reaction temperature, and time have been studied. After dissolving the cured mass in dilute acid and clarification, the obtained solution was subjected to hydrolysis of its titanium content. The final product was bleached under reducing conditions to redissolve the residual coloring impurities before being dewatered and calcinated. The obtained results indicated that a leaching efficiency of about 92% was realized due to the presence of some refractory components in the working slag material, namely, rutile and magnesium iron titanate. The obtained white pigment assay attained up to 99.85% TiO , while the analyzed impurities involve 77 ppm Mn and only 14 and 7 ppm of total iron and V, respectively.

Keywords： titania     slag     sulfate process     pigment    

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Impact of roxarsone on the UASB reactor performance and its degradation

Mengchuan Shui, Feng Ji, Rui Tang, Shoujun Yuan, Xinmin Zhan, Wei Wang, Zhenhu Hu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0871-9

Abstract: compounds are toxic to microorganisms, but the influence of continuous ROX loading on upflow anaerobic sludgein the UASB reactors treating organoarsenic-contaminated manure and wastewater, and the effluent and sludge

Keywords： Anaerobic digestion     Anaerobic granular sludge (AGS)     Arsenic species     Impact     Roxarsone (ROX)     UASB reactor    

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Mesophilic and thermophilic anaerobic digestion of swine manure with sulfamethoxazole and norfloxacin

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1342-x

Abstract:

• SMX addition had negative effect on acetoclastic methanogens in mesophilic AD.

Keywords： Pig manure     Antibiotics     Anaerobic digestion     Resistance genes     Microbial community    

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Degradation of polyacrylamide (PAM) and methane production by mesophilic and thermophilic anaerobic digestion

Mona Akbar, Muhammad Farooq Saleem Khan, Ling Qian, Hui Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1277-2

Abstract: Polyacrylamide (PAM) is generally employed in wastewater treatment processes such as sludge dewateringand therefore exists in the sludge.Furthermore, it degrades slowly and can deteriorate methane yield during anaerobic digestion (AD).This study mainly focuses on PAM degradation and enhanced methane production from PAM-added sludge duringSludge and PAM dose from 10 to 50 g/kg TSS were used.

Keywords： Polyacrylamide (PAM) degradation     Acrylamide (AM)     Mesophilic anaerobic digestion     Thermophilic anaerobicdigestion     Methane production    

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ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 424-436 doi: 10.15302/J-FASE-2023506

Abstract:

● Integration of alkaline pretreatment and air mixing for co-digestion

Keywords： sodium hydroxide     air injection     cumulative methane yield     kinetic modeling analysis     digestate    

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Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1736-7

Abstract:

● The PCDD/F distribution patterns of the FW-AD process were investigated.

Keywords： Biological treatment     MSW classification     Mass balance     Solid digestate    

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Title Author Date Type Operation

A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Journal Article

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

Journal Article

Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Journal Article

Anaerobic digestion of sludge by different pretreatments: Changes of amino acids and microbial community

Journal Article

Distribution and removal of antibiotic resistance genes during anaerobic sludge digestion with alkaline

Mengli Wang, Ruying Li, Qing Zhao

Journal Article

Comparison of different valent iron on anaerobic sludge digestion: Focusing on oxidation reduction potential

Journal Article

Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

Journal Article

Increasing the performance of anaerobic digestion: Pilot scale experimental study for thermal hydrolysisof mixed sludge

S.I. PEREZ-ELVIRA, M. FDZ-POLANCO, F. FDZ-POLANCO,

Journal Article

Thermal Hydrolysis of Wastewater Sludge Followed by Fungal Fermentation for Organic Recovery and Hyphae

Jia-jin Liang, Bing Li, Lei Wen, Ruo-hong Li, Xiao-yan Li

Journal Article

Sulfate digestion process for high purity TiO

T. A. LASHEEN

Journal Article

Impact of roxarsone on the UASB reactor performance and its degradation

Mengchuan Shui, Feng Ji, Rui Tang, Shoujun Yuan, Xinmin Zhan, Wei Wang, Zhenhu Hu

Journal Article

Mesophilic and thermophilic anaerobic digestion of swine manure with sulfamethoxazole and norfloxacin

Journal Article

Degradation of polyacrylamide (PAM) and methane production by mesophilic and thermophilic anaerobic digestion

Mona Akbar, Muhammad Farooq Saleem Khan, Ling Qian, Hui Wang

Journal Article

ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

Journal Article

Distribution of PCDD/Fs in a food waste anaerobic digestion process with biogas utilization

Journal Article