scholarly journals Application of physico-chemical pretreatment methods to enhance the sludge disintegration and subsequent anaerobic digestion: an up to date review

2011 ◽  
Vol 10 (3) ◽  
pp. 215-242 ◽  
Author(s):  
Vinay Kumar Tyagi ◽  
Shang-Lien Lo
Keyword(s):  
Anaerobic Digestion ◽  
Chemical Pretreatment ◽  
Physico Chemical

Breakthrough in hydrolysis of waste biomass by physico-chemical pretreatment processes for efficient anaerobic digestion

Chemosphere ◽  
2022 ◽  
pp. 133617
Author(s):  
Preethi ◽  
Rajesh Banu J ◽  
Sunita Varjani ◽  
Sivashanmugam P ◽  
Vinay Kumar Tyagi ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Waste Biomass ◽  
Chemical Pretreatment ◽  
Physico Chemical ◽  
Hydrolysis Of ◽  
Pretreatment Processes

Determining Optimal Temperature Combination for Effective Pretreatment and Anaerobic Digestion of Corn Stalk

2021 ◽  
Author(s):  
Juan Li ◽  
Xiujin Li ◽  
Akiber Chufo Wachemo ◽  
Xiaoyu Zuo
Keyword(s):  
Anaerobic Digestion ◽  
Corn Stalk ◽  
Chemical Pretreatment ◽  
Organic Loading ◽  
Factors Affecting ◽  
Stirred Tank Reactors ◽  
Loading Rates ◽  
Hand Temperature ◽  
Thermophilic Anaerobic Digestion ◽  
Pretreatment Temperature

Abstract Temperature is one of the important factors affecting both chemical pretreatment and anaerobic digestion (AD) process of corn stalk (CS). In this work, the combined ways between pretreatment temperature (40℃ and 60℃) and AD temperature (35℃ and 55℃) were selected to investigate the AD performance for sodium hydroxide (NaOH) pretreated CS. Three organic loading rates (OLRs) of 1.6, 1.8 and 2.0 g·L-1·d-1 were studied within 255 days using continuously stirred tank reactors (CSTR). The results revealed that temperature of 40°C was considered as an appropriate for pretreatment whether in mesophilic or thermophilic anaerobic digestion systems. On the other hand, temperature of 35°C and 55°C were chosen as the optimal AD temperatures for lower and higher OLRs, respectively. This study provides a significant insight for exploring the effects of temperatures on the pretreatment and AD of CS.

Enhancing the anaerobic digestion of corn stover by chemical pretreatment with the black liquor from the paper industry

2020 ◽  
Vol 306 ◽  
pp. 123090 ◽  
Author(s):  
Haipeng Xu ◽  
Yan Li ◽  
Dongliang Hua ◽  
Yuxiao Zhao ◽  
Hui Mu ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Corn Stover ◽  
Paper Industry ◽  
Black Liquor ◽  
Chemical Pretreatment

Improvement of anaerobic digestion of swine slurry by steam explosion and chemical pretreatment application. Assessment based on kinetic analysis

2016 ◽  
Vol 4 (2) ◽  
pp. 2033-2039 ◽  
Author(s):  
Eduardo Ortega-Martinez ◽  
Consuelo Zaldivar ◽  
Javiera Phillippi ◽  
Helene Carrere ◽  
Andres Donoso-Bravo
Keyword(s):  
Anaerobic Digestion ◽  
Kinetic Analysis ◽  
Steam Explosion ◽  
Chemical Pretreatment ◽  
Swine Slurry

scholarly journals Implementation of the anaerobic digestion model (ADM1) in the PHREEQC chemistry engine

2017 ◽  
Vol 76 (5) ◽  
pp. 1090-1103 ◽  
Author(s):  
Patrick Huber ◽  
Christophe Neyret ◽  
Eric Fourest
Keyword(s):  
Anaerobic Digestion ◽  
Ionic Composition ◽  
Simulation Software ◽  
Physico Chemical ◽  
Programming Effort ◽  
Water Association ◽  
Full Power ◽  
International Water ◽  
Multiple Mineral ◽  
Precipitation Phenomena

Anaerobic digestion is state-of-the-art technology to treat sludge and effluents from various industries. Modelling and optimisation of digestion operations can be advantageously performed using the anaerobic digestion model (ADM1) from the International Water Association. The ADM1, however, lacks a proper physico-chemical framework, which makes it difficult to consider wastewater of complex ionic composition and supersaturation phenomena. In this work, we present a direct implementation of the ADM1 within the PHREEQC chemistry engine. This makes it possible to handle ionic strength effects and ion-pairing. Thus, multiple mineral precipitation phenomena can be handled while resolving the ADM1. All these features can be accessed with very little programming effort, while retaining the full power and flexibility of PHREEQC. The distributed PHREEQC code can be easily interfaced with process simulation software for future plant-wide simulation of both wastewater and sludge treatment.

A Review of Hybrid Process to Treat Coal Gasification Wastewater

2014 ◽  
Vol 955-959 ◽  
pp. 2196-2199
Author(s):  
Fu Zhen Li ◽  
Qi Feng Liu ◽  
Shao Hui Yan ◽  
Jing Jing Zhao ◽  
Bing Qian Fan ◽  
...  
Keyword(s):  
Biological Treatment ◽  
Membrane Reactor ◽  
Coal Gasification ◽  
Environmental Problem ◽  
Activated Sludge Process ◽  
Chemical Pretreatment ◽  
Toxic Compounds ◽  
Hybrid Processes ◽  
Physico Chemical ◽  
Coal Gasification Wastewater

Due to the presence of complicated and considerable amounts of toxic compounds such as phenolic compounds, thiocyanate and ammonium, coal gasification wastewater (CGW) would cause a serious environmental problem. Conventional treatment of CGW includes a series of biological treatment (mostly anoxic-aerobic process and activated sludge process) after a physico-chemical pretreatment to reduce the concentrations of phenols and ammonium. Although quite effective, these processes are still not enough to meet the strict requirements of the National Discharge Standard of China. To find more efficient way to treat CGW, a serious of hybrid processes were reviewed in this study. Through this review we found that A2O combined with MBR (anaerobic-anoxic-aerobic membrane reactor) can effectively remove COD, total organic carbon, NH4+ -N, total phenols and total nitrogen (TN).

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