Thermal Hydrolysis Articles
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Using Mass Spectrometry to Research Thermal Hydrolysis of Waste
Mass spectrometry is used to research the thermal hydrolysis of waste materials to gain a deeper understanding of how changing parameters affect the outcomes of the process. Mass spectrometry, especially an instrument manufactured to analyse dissolved species, is ideal for waste materials as contaminants can be identified and measured. This blog post will look at the importance of thermal ...
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Status Quo and Development Trend of Sludge Treatment
Mud Nature Sludge, as a by-product of sewage treatment, enriches sewage pollutants (heavy metals, refractory organics, persistent organics, microplastics, etc.) and nutrients (C, N, P, etc.), the source has the dual attributes of "resource" and "pollution". The rich organic matter contained in the sludge can be absorbed by anaerobic Fuels with high calorific value such as methane biogas (biogas) ...
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How do Wastewater Treatment Plants Transform in the Era of Carbon Neutrality?
In November 2019, the Danish government signed a "Danish climate partnership" with 13 business representatives, which basically covers the greenhouse gas emissions of all industries in Denmark. The members of the Climate Partnership need to provide emission reduction recommendations in their respective fields to help the Danish government realize its 2030 commitment-that is, Denmark’s ...
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Reducing environmental impact
Replacing a decades-old wastewater treatment plant in the center of a densely populated European metropolis is not a task for the faint of heart. But that is exactly what a Veolia-led consortium did in a northern suburb of France with Lille Métropole’s new Ovilléo wastewater treatment plant that was commissioned in 2014. In 2010, a six-year ...
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Scottish Water - Edinburgh - Seafield - Case Study
Client: Scottish Water Solution: CambiTHP - B6 Seafield On 2 October 2013, MWH Treatment awarded Cambi a contract for the installation of two lines of Cambi’s modular THP B6 system, at Stirling Water’s Seafield Waste Water Treatment Works, Edinburgh, Scotland. Each line is capable of treating 50 dry tonnes of sewage sludge per day. The choice of THP system was made using a ...
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PUB - Singapore - Jurong - Case Study
Client: PUB Solution: CambiTHP - B6 Jurong The Jurong WRP, owned and operated by PUB (Public Utility Board, Singapore) is located in the Jurong district, in the west part of Singapore. The plant is treating sludge from the waste water plant. As part of the Phase 4 Expansion project PUB choose to implement a Cambi THP system to provide the thermal hydrolysis system to process waste ...
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Athens - Psyttalia - Case Study
Client: EYDAP Solution: CambiTHP - B6 Psyttalia The wastewater treatment plant of Psyttalia, is the final recipient of domestic sewage and pre-treated industrial wastewater of the greater Athens area in Greece, receiving an average wastewater flow of 730.000 m³/d, with a biological treatment capacity of 3,500,000 Equivalent Population. In order to improve the energy footprint of the ...
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Beijing - Gao Bei Dian Water Reclamation Plant - Case Study
Client: Beijing Drainage Group Solution: CambiTHP - B12 On 1st September 2014, Cambi was awarded the initial Beijing project, Gao Bei Dian, from Beijing Drainage Construction Company, a flagship for large-scale sludge projects with Cambi Thermal Hydrolysis Process (Cambi THP). The project finished in December 2016. The full sludge amount 99,100 tDS/y be treated in Cambi THP with subsequent ...
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Effects of thermal hydrolysis temperature on physical characteristics of municipal sludge
Effects of thermal hydrolysis temperature on the physical properties of municipal sludge was further studied by a series of experiments. There was a decrease in bound water content with an increase in hydrolysis temperature, while there was an increase in pH at temperatures below 120 °C, and a decrease at temperatures exceeding 120 °C. An analysis of settleability, centrifugation and vacuum ...
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Thermal hydrolysis of waste activated sludge at Hengelo Wastewater Treatment Plant, The Netherlands
The thermal hydrolysis process (THP) is a sludge treatment technique which affects anaerobic biodegradability, viscosity and dewaterability of waste activated sludge (WAS). In 2011 a THP-pilot plant was operated, connected to laboratory-scale digesters, at the water board Regge en Dinkel and in cooperation with Cambi A.S. and MWH Global. Thermal hydrolysis of WAS resulted in a 62% ...
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Anaerobic model for high-solids or high-temperature digestion – additional pathway of acetate oxidation
Current anaerobic digestion models cannot properly simulate processes that are operated under high solids concentrations or high temperatures. A modification to existing models has been implemented by adding important missing degradation pathways, to accommodate these systems without artificially recalibrating the model parameters. Specifically, we implemented the alternate acetate oxidizing ...
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Pilot-scale experiment on thermally hydrolyzed sludge liquor anaerobic digestion using a mesophilic expanded granular sludge bed reactor
A pilot process of thermal hydrolysis combined with an expanded granular sludge bed reactor (EGSB) was carried out to evaluate pretreated sludge liquor into biogas conversion, process stability, and energy input/output balance. Approximately 25% of suspended solids of sludge were liquefied into aqueous phase during thermal hydrolysis pretreatment, which resulted in chemical oxygen demand ...
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Optimization of municipal sludge and grease co-digestion using disintegration technologies
Many drivers tend to foster the development of renewable energy production in wastewater treatment plants as many expectations rely upon energy recovery from sewage sludge, for example through biogas use. This paper is focused on the assessment of grease waste (GW) as an adequate substrate for co-digestion with municipal sludge, as it has a methane potential of 479–710 LCH4/kg VS, as well as the ...
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Microbial community analysis during continuous fermentation of thermally hydrolysed waste activated sludge
Acidogenic fermentation of thermally hydrolysed waste activated sludge was carried out at laboratory scale in two reactors operated under different hydraulic retention times (HRT). Process performance was assessed in terms of volatile fatty acid (VFA) composition and yield. The diversity of the microbial population was investigated by constructing a 16S rRNA gene library and subsequent ...
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Evaluation of a two-stage hydrothermal process for enhancing acetic acid production using municipal biosolids
A two-stage hydrothermal process aimed at improving acetic acid production using municipal biosolids was evaluated against thermal hydrolysis and conventional wet oxidation process in a 600 ml Parr batch reactor. Thermal hydrolysis was conducted at 140 °C, wet oxidation at 220 °C and the two-stage process, which acted as a series combination of thermal hydrolysis and wet oxidation, at 220 °C. ...
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Neptune project deliverable D4.3
Decision support guideline based on LCA and cost efficiency assesment The environmental sustainability assessments described in this report is based on life cycle assessments (LCA) of selected waste water treatment technology (WWTT) cases included in NEPTUNE. The basic approach in these assessments (avoided against induced impacts) is described in Deliverable 4.1 (Larsen et al. 2007) and other ...
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Integration of thermal hydrolysis into sludge treatment at cottonvalley WwTW, milton keynes
The paper is a case study of the construction, commissioning and operation of a new 21,000 tonnes dry solids per annum sludge treatment centre at Anglian Water’s wastewater treatment works at Cottonvalley, Milton Keynes. The construction of the new sludge treatment centre was completed in summer 2008 and is part of Anglian Water’s £95 million AMP5 biosolids programme to provide treatment capacity ...
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Combined experiences of thermal hydrolysis and anaerobic digestion latest thinking on hydrolyis of secondary sludge only
The basic principles of batch thermal hydrolysis process (THP) are well known and have been put into full practice in 20 plants around the world. This paper reviews the historical development of the process and the latest thinking on the application of THP from a number of sources in Europe. An independent investigation of the vendors claims support the data for the benefits claimed to date. The ...
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Combined experiences of thermal hydrolysis and anaerobic digestion – latest thinking on thermal hydrolysis of secondary sludge only for optimum dewatering and digestion.
ABSTRACT The basic principles of batch thermal hydrolysis process (THP) are well known as a pre-treatment to anaerobic digestion (AD) . Early work done in the 70s in the USA and the 80s in Japan demonstrated the optimum time and temperature for thermal hydrolysis being 340 F for 30minutes. These principles have been put into full practice in 20 plants around the world at plants ranging from 5 ...
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Thermal hydrolysis as pretreatment of digestion feed
AbstractA large number of different processes are today on the market for treatment of biodegradable waste. The two principal biological treatment methods available are aerobe treatment (composting) and anaerobe treatment (digestion/fermentation). In Norway so far, aerobe treatment has been the most popular solution. Both windrow composting and tunnel composting systems are in use. The first ...
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