thermal hydrolysis Articles
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DC WASA adopts thermal hydrolysis for anaerobic digestion pretreatment: conceptual design details for the largest Cambi™
ABSTRACT The District of Columbia Water and Sewer Authority (DC WASA) has decided to incorporate thermal-hydrolysis pretreatment in conjunction with mesophillic anaerobic digestion as the backbone of a long-term biosolids treatment plan to produce Class A biosolids. The Authority has been lime stabilizing their raw solids from the Blue Plains Plant for many years, transporting them to the State ...
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New horizons for sludge
Increasing production worldwide, higher cost for disposal, tighter restriction sludge management solutions are in high demand. New technologies are rapidly multiplying, fueled as well by sludge’s potential as a source of energy and potential for phosphorus recycling. Several drivers are contributing to the need for sludge solutions. A global population of 7.5 billion ...
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Thermal hydrolysis pre-treatment for high solids anaerobic digestion
The City and County of San Francisco completed a two-year pilot study of pre-treatment processes to mesophilic anaerobic digestion for improved biosolids stabilization and production of biosolids suitable for unrestricted reuse (class A biosolids). The results of this effort will help in the design of the new Solids Handling Facility (SHF) at the 11 m3/s Southeast Water Pollution Control Plant ...
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Maximising biogas in anaerobic digestion by using engine waste heat for thermal hydrolysis pre-treatment of sludge
EXECUTIVE SUMMARY Dublin's Ringsend WWTP was designed to serve a population of approximately 1.2 million pe with a sludge production of 37,000 dry tonnes per year after upgrading to full secondary treatment. Several technical solutions were put forward as part of a Design, Build, Finance and Operate (DBFO) competition, with the chosen solution being a proposal by Black and Veatch for a ...
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Evaluation of thermal steam-explosion key operation factors to optimize biogas production from biological sludge
Thermal steam-explosion is the most extended hydrolysis pretreatment to enhance anaerobic digestion of sludge. Thermal hydrolysis key parameters are temperature (T) and time (t), and the generally accepted values reported from full-scale information are: 150–230 °C and 20–60 min. This study assesses the influence of different temperature–time–flash combinations (110–180 °C, 5–60 min, 1–3 ...
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Acuaes - Vigo - Lagares - Case Study
Client: Acuaes Solution: CambiTHP - B6 Vigo Vigo is a new WWTP in northwest Spain. The new plant is the largest bio-filtration in Spain and one of the largest in Europe. Designed for 800.000 inhabitants – equivalents. This plant treats sludge from several municipalities in and around Vigo. Cambi has installed his thermal hydrolysis – one B6 – 3 model, with a designed capacity ...
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Strategic Carbon technology – How to use sludge to your advantage
The often conflicting demands of regulation and the need to reduce costs can be turned into a win:win situation by investing in the right mix of technologies for sludge treatment. This paper will discuss the work completed by Entec UK Ltd in conjunction with Thames Water Utilities Ltd in developing their sludge strategy and, in particular, a review of the most appropriate technologies to meet ...
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Project Minworth Sewerage Plant Case Study - Case Study
Location Minworth Year 2017 Project Type Biodome MINWORTH SEWAGE TREATMENT SITE SERVICES MORE THAN 1.7 MILLION PEOPLE IN THE BIRMINGHAM AND BLACK COUNTRY AREA. Powered entirely by Biogas produced through Anaerobic Digestion at the site itself. A modern solution was required to future-proof the plant for expansion and development. This unique wastewater engineering solution was ...
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Comparison of response surface methodology and artificial neural network for optimum levulinic acid production from glucose, empty fruit bunch and kenaf
Levulinic acid (LA) is one of the versatile chemicals that can be produced from lignocellulosic biomass. In this study, response surface methodology (RSM) and artificial neural network (ANN) were applied to optimise LA yield from glucose, empty fruit bunch (EFB) and kenaf. The effect of process variables namely reaction temperature, reaction time and acid concentration on LA production was ...
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Desulfuration of Biogas
ORIGIN, EFFECTS AND TREATMENTS The elimination of hydrogen sulfide (H2S) in biogas becomes a necessity not only to keep the pipelines, machines and equipment involved in its transportation, use and application in good condition but also, and above all, to preserve the life of all the personnel in charge of the operation and maintenance of the biogas production stations, as well as ...
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