digester Articles
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Project Eifaulturm Kyoto Toba, Japan - Case Study
Customer: Obayashi Oriental Shiraishi Yoshikawa JV Client: Kyoto City RSB of construction: 2016/2017 Capacity: 5,500m³ per digestion tower (2 digestion towers) Dimensions: Diameter: 21,7m Height: 30m ...
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Lead determination in instant noodles
Wet Digester B-440: Acid digestion and ashing using the Wet Digester B-440 followed by spectroscopic lead determination Lead determination by ICP-MS using the Wet Digester B-440 for ashing gives reliable results with a recovery rate above 85 % and is in accordance to the FSSAI regulation. For the measured instant noodle samples the lead content was far below the permissible limit. Lead ...
By BUCHI
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Microwave-assisted oxidative digestion of lignin with hydrogen peroxide for TOC and color removal
Dilute lignin solution was successfully digested into colorless and clarified liquor under microwave-assisted oxidative digestion with hydrogen peroxide. High dosage of hydrogen peroxide is needed to effectively digest lignin, but excessive hydrogen peroxide may lead to recondensation of formed fragments in digested lignin. Microwave irradiation greatly facilitates the oxidative digestion of ...
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Assembly of Methan-Digesters in Benesov - Case Study
After only a short erection time of 3 month the heart of the plant, the two digester are completed. With a diameter of 9 m and a height of 18 m and their appearance is an indication for the total size of the plant. The erection is affected as all projects of GLS Tanks International GmbH by international cooperation. Our erection crew installed both digesters together with Czech helpers in record ...
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ERC (DEU) Disposal Company - Case Study
Digester: 650 m³ (hydraulic digester) Gas storage: 280 m³ Input substrates: food waste Scope of services: concept creation, consulting, detail engineering, delivery of equipment, general project supervision, start-up, operational support and service Start-up: 1996 / reconstruction ...
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Recycling Energie AG (CHE) Disposal Company - Case Study
Digester: 2x 2.000 m³ Post digester: 2 x 2.600 m³ Gas storage: 2 x 930 m³ Input substrates: manure, grass cuts, food 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 - London England
Plant’s power: 2500 kW/h Daily Feeding: 250 t/d OFMSW Goal: to concentrate the amount of Dry Matter into digesters To see video, please click ...
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CS Bioenergia (BRA) Disposal Company - Case Study
Digester: 2 x 5.000 m³ Post Digester: 3.400 m³ Gas storage: 3.250 m³ Input substrates: primary and secundary sludge, food waste Scope of services: concept creation, consulting, detail engineering, delivery of equipment, general project supervision, start-up, operational support and service Estimatet completion date: ...
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How do you satisfy over 100 million connoisseurs with the taste and texture they demand? - Case Study
Satisfying the world’s smallest customers can be a big challenge. Sensitive to particular flavors, infants and toddlers need their food to be the right consistency, easy to digest, and absolutely one-hundred percent pure. Thanks to the unique flavor, gelatinization, and easy digestion achieved by ANDRITZ Gouda drum dryers, our technology has become the industry standard in baby food ...
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Relevance of plant functional types based on leaf dry matter content for assessing digestibility of native grass species and species-rich grassland communities in spring
Little research has been done on the nutritive value of species-rich permanent grasslands in spite of their recognized ecological value. We proposed a new method based on the concept of plant functional type (PFT) to rank grass species and grasslands according to the organic matter digestibility (OMD) of the plant material. The PFTs are based on leaf dry matter content (LDMC). The objectives of ...
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High dry solids digestion
Abstract Digestion of sewage sludge normally takes place at pH values between 7,0 and 7,5. Control methods of the process stability are based on practical experience such as the ratio of volatile fatty acids (VFA) and total alkalinity (TA). Thermal sludge disintegration for an enhanced digestion process allows a digester feed with higher dry solids concentrations. This is due to an opening of ...
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Effect of trace metals on halophilic and mixed cultures in anaerobic treatment
Abstract: 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 ...
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High dry solids digestion
ABSTRACTDigestion of sewage sludge normally takes place at pH values between 7,0 and 7,5. Control methods of the process stability are based on practical experience such as the ratio of volatile fatty acids (VFA) and total alkalinity (TA). Thermal sludge disintegration for an enhanced digestion process allows a digester feed with higher dry solids concentrations. This is due to an opening of cell ...
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Intake, digestibility, and nitrogen balance of steers fed gamagrass baleage topdressed at two rates of nitrogen and harvested at sunset and sunrise
Maximum diurnal accumulation of soluble carbohydrates in warm-season grasses is an economic way of increasing hay quality; however, in the humid East, haymaking is difficult. This study evaluated gamagrass (Tripsacum dactyloides L.), topdressed with either 56 (LO) or 168 (HI) kg N ha–1, direct baled after mowing in the afternoon (PM/LO and PM/HI) or morning (AM/LO and AM/HI), wrapped with plastic ...
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Brno (CZE) Municipal Plants - Case Study
Digester: 4 x 4.000 m³ sewage sludge digestion Scope of services: sewage sludge digester agitators, gas equipment, desulphurization Start-up: ...
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Jakob Bösch AG (CHE) Disposal Company - Case Study
Digester: 3 x 1.650 m³ Post digester: 990 m³ Gas storage: 2.100 m³ Input substrates: manure, food waste, slaughterhouse 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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Enhancement of the conventional anaerobic digestion of sludge: comparison of four different strategies
Anaerobic digestion (AD) is the preferred option to stabilize sludge. However, the rate limiting step of solids hydrolysis makes it worth modifing the conventional mesophilic AD in order to increase the performance of the digester. The main strategies are to introduce a hydrolysis pre-treatment, or to modify the digestion temperature. Among the different pre-treatment alternatives, the thermal ...
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Comparison of microbial activity in anaerobic and microaerobic digesters
Microaerobic alternative of anaerobic digestion offers many advantages especially when sulfide concentration in the digester is high. For better understanding of the microaerobic technology more detailed characterization of biomass activity is needed. Two equal digesters were operated under the same condition except of microaeration in one of them. During long term operation of anaerobic and ...
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Hygienization of sludge through anaerobic digestion at 35, 55 and 60 °C
Legislation in Sweden and the European Union concerning the use of sewage sludge in agriculture is under revision and future concentration limits for pathogens in treated sludge are likely to be expected. The aim of this study was to evaluate the hygienization of Salmonella, Escherichia coli, Enterococcus and Clostridium perfringens through continuous anaerobic digestion at 35, 55 or 60 ...
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Project - Valorgas
AeroThermal has made a major contribution to a study examining the effectiveness of various pre-treatments to enhance the bio-methane yield from food waste. Our contribution was to examine the effect of autoclaving on the digestibility of food waste. The studies, which were partially funded by the EU, included small scale tests in Finland on material processed in our pilot scale autoclave in ...
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