Effect of mixture of surfactants and adsorbents on anaerobic digestion of water hyacinth-cattle dung

The potential of different agro-wastes like green grass (Cynodon dactylon (L.)), bagasse, algae (Enteromorpha spp.), banana stem and water hyacinth (Eichhornia crassipes) in combination with cattle dung for methane production by anaerobic digestion have been evaluated. The results indicate that these wastes can be exploited for methane generation in combination with cattle dung. Best results were obtained with green grass when it was combined with cattle dung in the ratio of 1:4.

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Effect of agricultural and other wastes on anaerobic digestion of water hyacinth-cattle dung

Journal of Fermentation and Bioengineering ◽

10.1016/0922-338x(90)90147-o ◽

1990 ◽

Vol 70 (5) ◽

pp. 343-344 ◽

Cited By ~ 3

Author(s):

Datta Madamwar ◽

Vikram Patel ◽

Anami Patel

Keyword(s):

Anaerobic Digestion ◽

Water Hyacinth ◽

Cattle Dung

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An Assessment of Different Integration Strategies of Hydrothermal Carbonisation and Anaerobic Digestion of Water Hyacinth

Energies ◽

10.3390/en13225983 ◽

2020 ◽

Vol 13 (22) ◽

pp. 5983

Author(s):

Aaron E. Brown ◽

Jessica M. M. Adams ◽

Oliver R. Grasham ◽

Miller Alonso Camargo-Valero ◽

Andrew B. Ross

Keyword(s):

Anaerobic Digestion ◽

Water Hyacinth ◽

Large Scale ◽

Aquatic Macrophyte ◽

Integration Strategy ◽

Bioenergy Generation ◽

Global Presence ◽

Freshwater Bodies ◽

Hydrothermal Carbonisation ◽

Integration Strategies

Water hyacinth (WH) is an invasive aquatic macrophyte that dominates freshwater bodies across the world. However, due to its rapid growth rate and wide-spread global presence, WH could offer great potential as a biomass feedstock, including for bioenergy generation. This study compares different integration strategies of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) using WH, across a range of temperatures. These include (i) hydrochar combustion and process water digestion, (ii) hydrochar digestion, (iii) slurry digestion. HTC reactions were conducted at 150 °C, 200 °C, and 250 °C. Separation of hydrochars for combustion and process waters for digestion offers the most energetically-feasible valorisation route. However, hydrochars produced from WH display slagging and fouling tendencies; limiting their use in large-scale combustion. AD of WH slurry produced at 150 °C appears to be energetically-feasible and has the potential to also be a viable integration strategy between HTC and AD, using WH.

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95/01602 Anaerobic digestion of cheese whey, poultry waste and cattle dung - A study of the use of mixture of adsorbents and/or surfactants to improve digester performance

Fuel and Energy Abstracts ◽

10.1016/0140-6701(95)93267-4 ◽

1995 ◽

Vol 36 (2) ◽

pp. 109

Keyword(s):

Anaerobic Digestion ◽

Cheese Whey ◽

Cattle Dung ◽

Poultry Waste

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Self-sustainability of anaerobic digestion for conversion of water hyacinth into value-added biofuels

10.1016/b978-0-323-85223-4.00012-9 ◽

2021 ◽

pp. 133-144

Author(s):

Ahmed Tawfik ◽

Vinay Kumar Tyagi

Keyword(s):

Anaerobic Digestion ◽

Water Hyacinth ◽

Value Added

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Electricity Generation from Cattle Dung Using Microbial Fuel Cell in Acidification Process of Two-Phase Anaerobic Digestion System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.113-116.286 ◽

2010 ◽

Vol 113-116 ◽

pp. 286-290 ◽

Cited By ~ 1

Author(s):

Guang Zhao ◽

Li Wei ◽

Fang Ma ◽

Hong Chua ◽

Zhe Wang

Keyword(s):

Fuel Cell ◽

Anaerobic Digestion ◽

Microbial Fuel Cell ◽

Electricity Generation ◽

Cattle Dung ◽

Anode Chamber ◽

Continuous Stirred Tank Reactor ◽

Two Phase ◽

Batch Mode ◽

Main Components

The microbial fuel cell (MFC) constructed by a modified Continuous Stirred Tank Reactor (CSTR) which was used as acidification-phase of two-phase anaerobic digestion system. The experiment was operated as batch mode at mesophilic condition (35°C) to evaluate continue voltage output using cattle dung as substrate in hydrolysis-acidification process. The results illustrated that electricity generation increased noticeably to 300mV after 3 days operation, reached 430mV after 20 days and stabilized electricity generation from 420mV to 470mV in the following 70 days. The pH decreased from 7.15 to 6.65 after 15 days operation and maintained stability from 6.4 to 6.8. The main components of VFA in anode chamber were acetic, propionic and butiric acids. The dominating VFA was acetic acid that predominated untile day 50 and the maximum propionic acid concentration was 15% of total VFA.

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