digestate Articles
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SIF Oregon (USA) Disposal Company - Case Study
Digester: 2 x 3.500 m³ (hydraulic digester) Post digester: 3.000 m³ Gas storage: 1.800 m³ Input substrates: vegetable waste,potatoes, pumpkin, maize waste Scope of services: concept creation, consulting, detail engineering, delivery of equipment, general project supervision, start-up, operational support and service Start-up: ...
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Project - Taunton England
Plant’s power: 3000 kW/h Daily Feeding: whole Cereal silage, grass silage, OFMSW and pig slurry Goal: to improve the viscosity into digesters and to concentrate the DM % into digesters To see video, please click ...
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Immobilization of lead by a vermicompost and its effect on white bean (Vigna Sinenis var. Apure) uptake
Trace metals are known to stimulate the activity of anaerobic methanogenic bacteria involved in the degradation of organic matter. The objective of this research was to investigate the effect of three trace metals, iron, nickel and cobalt on the activity of halophilic methanogens, digester sludge and a mixed culture of halophilic bacteria and digester sludge, at various salt concentrations. Iron ...
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Project - Birmingham England
Plant’s power: 3500 kW/h Daily Feeding: OFMSW and whole cereal silages Goal: to concentrate the DM% into digesters in way to increase the gas production without build a new tank To see video, please click ...
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Prokaryote community dynamics in anaerobic co-digestion of swine manure, rice straw and industrial clay residuals
The aim of this study was to analyze the effect of the addition of rice straw and clay residuals on the prokaryote methane-producing community structure in a semi-continuously stirred tank reactor fed with swine manure. Molecular techniques, including terminal restriction fragment length polymorphism and a comparative nucleotide sequence analyses of the prokaryotic 16S rRNA genes, were ...
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Anaerobic batch degradation of cattail by rumen cultures
The anaerobic batch digestion of cattail with two substrate concentrations of 10 g and 30 g Volatile Solids (VS)/l was investigated in this study. The hydrolysis of cattail was not significantly affected by the substrate concentrations, and it was able to be described by a first-order kinetic model with hydrolysis constants of 0.298 d−1 and 0.294 d−1, respectively. The main aqueous products from ...
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Removal and recovery of ammonia from chicken manure
The feasibility of the conversion of organic nitrogen available in raw chicken manure (CM) into ammonia via hydrolysis and the removal of ammonia from anaerobically digested manure were evaluated in this study. Firstly, the hydrolysis experiments were performed and the effects of temperature, total solids (TS) content and retention time were investigated. The results showed that 90% of the ...
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Evaluation of anaerobic digestate as a substrate for vermicomposting
Vermicomposting is an established process to convert organic wastes into vermicastings suitable for plant growth. This research investigated the vermicomposting of anaerobic digestate with four different ratios of sawdust as a bulking material, for 75 days. The optimum proportion of anaerobic digestate to sawdust was identified as 70:30 based on worm growth and reproduction. Vermicomposting ...
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Project - Hjørring Denmark
Plant’s power: 1000 kW/h Daily feeding: cattle slurry, cattle manure with straw, glycerin Goal: increase gas yield from manure to have less fiber degraded in the digestate in output To see video, please click ...
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Kinds of pig feed
The pig is an omnivorous animal, and its recipes can be said to be varied and eat everything. Pig feed can be divided into protein feed, energy feed, roughage, green feed, silage, mineral feed, feed additives, and vitamin feed if it is divided into eight categories according to nutrition. 1. Protein feed, 2. Energy feed, 3. Coarse feed, 4. Green feed, 5. Silage, 6. Mineral feed, 7. Feed ...
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Project - Brandegurg Germany
Plant’s power: 500 kW/h Daily feeding: pig slurry; corn silage; rye meal Goal: Reduce the product’s viscosity into digesters to increase the concentration of Dry Matter To see video, please click ...
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Development of Waste Sawdust as a plant protection material for horticulture and agriculture
Untitled Document Lignin is one of the major wastes of modern society, in the form of wood waste such as sawdust. In nature, lignin is slowly digested to soil humus. This project is to ascertain whether sawdust could be digested into a plant protection material. The value of this would be that it would control some pests and diseases without being a pesticide nor fertilizer. ...
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Project - Dingolfing Germany
Plant’s power: 800 kW/h Daily feeding: corn silage, clover, cattle manure with straw Goal: to reduce the viscosity into digesters and to reduce the corn silage percentage To see video, please click ...
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Vermicompost as an accelerator of methane production
The influences of different vermicompost concentrations of 8.33, 4.35 and 0.9%, respectively (based on TS), on the CH4 production, Specific Methanogenic Activities (SMAs) of the anaerobic sludge, pH and COD removal were investigated. A maximum cumulative CH4 production of 874 ml/L fermentation liquor was obtained from the experiment with vermicompost concentration of 8.33% which increased by ...
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Significance of Phosphorus in Anaerobic Digestion Residuals Recovery
Gas production and energy potential typically dominate the spotlight in the anaerobic digestion (AD) technology world, while benefits of residues and nutrient management from AD are overshadowed. However, utilizing AD residues and considering the value of properly managing nutrients, such as phosphorus, may make-or-break projects considered uneconomical based on energy production value alone. ...
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Project - Belfast, Northern Ireland
Plant’s power: 500 kW/h Daily Feeding: Grass silage, Maize silage, Chicken manure, Maize meal feed, Cow slurry Goal: Increase the digestibility of grass silage, reduce the amount of silage and corn flour and improve the viscosity in digesters To see video, please click ...
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A study on Air Filled Porosity evolution in sludge composting
Air Filled Porosity (AFP) is a key parameter in the composting process, conditioning oxygen availability and heat accumulation. Air pycnometry is considered the most adequate methodology for AFP determination. This technique requires withdrawing a sample of material from the composting mass for AFP measurement, which may alter its physical characteristics. A novel strategy that permits to measure ...
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Crop yield increased with the addition on Citadel Biocat+ in the digestate
Field applications evaluations of digestate from BioCat+ treated AD plants are under way in three locations in Europe. From initial results and observations it is apparent that the BioCat+ treated digestate has an improved symbiotic effect in the crop rhizosphere. Crops of wheat and maize recently harvested have shown increases in yields of up to 23% higher yields than previously achieved on the ...
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Project - Funtington UK
Plant’s power: 1800 kW/h Daily feeding: Corn Silage, Pig manure with straw, Straw Goal: to reduce the viscosity in digesters and increase the yield of gas from the straw. To see video, please click here Read more ...
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Plant reduces recycled phosphorus levels with biostimulation - Case Study
Problem A Texas utility struggled with elevated levels of sidestream phosphorus recycled to the treatment plant headworks from the aerobic digesters. The plant had documented increased phosphorus from decant and from downstream centrate, elevating effluent phosphorus and potentially affecting permit compliance. Staff investigated using a biostimulant in the digesters to improve biological ...
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