digester Articles | Environmental XPRT

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 ...

Feb. 26, 2015

By IWA Publishing

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 ...

Jul. 12, 2019

By RSB Formwork Technology GmbH

Antacids, Prescription Drugs or Digestive Enzymes? Your Best Bet for Better Digestion

Upset stomach, heartburn, diarrhea? There are few symptoms as disruptive to your daily life as ones that originate in the digestive system. And if you’re struggling with any of these symptoms, you know exactly how difficult they are to get rid of for good. Doctors recommend a variety of treatments, but there are three biggies they suggest most often for patients who are dealing with both ...

Apr. 8, 2019

By Specialty Enzymes & Biotechnologies Co.

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 ...

Jul. 27, 2016

By GLS Tanks International GmbH

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 ...

Feb. 5, 2016

By BÜCHI Labortechnik AG

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 ...

Jul. 1, 2017

By AAT Abwasser- und Abfalltechnik GmbH

Microalgae Yogurt: pro-life X2

Probiotics are beneficial forms of gut bacteria that help stimulate the natural digestive juices and enzymes that keep our digestive organs functioning properly. Microalgae are probiotic foods that have been shown to increase the amount of both Lactobacillus and bifidobacteria in the digestive tract. In addition to detoxify our body, microalgae stimulate the immune ...

Aug. 12, 2019

By Buggypower (Portugal), Lda

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: ...

Jul. 1, 2017

By AAT Abwasser- und Abfalltechnik GmbH

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 ...

Dec. 30, 2009

By Soil Science Society of America (SSSA)

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: ...

Jul. 1, 2017

By AAT Abwasser- und Abfalltechnik GmbH

Effect of low power ultrasound on aerobic/anoxic digestion of activated sludge

The effect of low power ultrasound on aerobic/anoxic digestion of activated sludge was investigated. First, dehydrogenate activity (DHA) and special oxygen uptake rate (SOUR) were detected to indicate the change of biological activity of sludge induced by ultrasound. Single-factor experiments showed that when the ultrasonic frequency was 28 kHz, the optimal ultrasonic density and exposure time ...

Feb. 1, 2012

By IWA Publishing

The influence of temperature and SRT on high-solid digestion of municipal sewage sludge

The influence of temperature and solids retention time (SRT) on high-solid digestion of municipal sewage sludge was investigated in laboratory-scale reactors. Digestion with high-solid concentration reduces the required digestion volume and is advantageous for urban areas. The experimental conditions comprised total suspended solids (TSS) in digested sludge between 4.0 and 4.6%, temperatures ...

Jun. 4, 2016

By IWA Publishing

Extracellular polymeric substances and dewaterability of waste activated sludge during anaerobic digestion

Anaerobic digestion of waste activated sludge was conducted to gain insight into the mechanisms underlying change in sludge dewaterability during its anaerobic digestion. Unexpectedly, the results indicated that sludge dewatering properties measured by capillary suction time only deteriorated after 10 days of anaerobic digestion, after which dewaterability recovered and remained stable. The ...

Nov. 18, 2014

By IWA Publishing

Lactobacillus casei is able to survive and initiate protein synthesis during its transit in the digestive tract of human flora-associated mice

Live Lactobacillus casei is present in fermented dairy products and has beneficial properties for human health. In the human digestive tract, the resident flora generally prevents the establishment of ingested lactic acid bacteria, the presence of which is therefore transient. The aim of this work was to determine if L. casei DN-114 001 survives during transit and how this bacterium behaves in ...

Apr. 23, 2002

By American Society for Microbiology (ASM)

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: ...

Jul. 1, 2017

By AAT Abwasser- und Abfalltechnik GmbH

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 ...

Apr. 21, 2006

By Center for Environment and Energy Research & Studies (CEERS)

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 ...

Mar. 15, 2019

By ANDRITZ Separation - ANDRITZ Group

F.O.G. / Fats oil & grease & H2S removal- a simple solution to a major problem - Case Study

Problem: Meridian Mississippi; 14 mile force main with 3 – 12 ft. diameter pump stations. Each station had heavy grease and rag mats 2 to 3 feet thick with H2S readings over 900 ppm. Solution: At the advice of consultant Jim White, Mr. Hugh Smith director of Meridian Sewer District installed 2 – 4hp DO2E Little John Digesters in each lift station. Results: According to Jim White, ...

Sep. 12, 2019

By DO2E Waste Water Treatment LLC

An analysis of the correlation between the non-cancer morbidity of children and the internal dose of 137Cs

This paper sets out to accomplish the following: (i) to define the relationship of child morbidity of the digestive system with the low radiation internal dose, taking into account the environmental landscape-geochemical conditions of residence territory and the age peculiarities of children, (ii) to select groups composed of children 0-14 years old and who live in analogical environmental and ...

Oct. 12, 2009

By Inderscience Publishers

Eridania (ITA) Agricultural Plant - Case Study

Digester: 3.250 m³ beet chips, corn 1 x 999 kWel scope of delivery: detailed design, agitators, gas handling equipment, instrumentation, control, plant start-up Start-up: ...

Jul. 1, 2017

By AAT Abwasser- und Abfalltechnik GmbH

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