anaerobic digester process Articles
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The effect of iron and aluminium for phosphorus removal on anaerobic digestion and organic sulfur generation
The addition of iron or aluminium into activated sludge basins for phosphorus removal is likely to impact both the efficiency of the anaerobic digestion process and the generation of odor-causing compounds following digestion and dewatering. In this study, the impact of iron and aluminium addition on digestion and odor-causing compounds was investigated by using batch digestion of combined ...
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Innovative approach to centrate nitrification accomplishes multiple goals: nitrogen removal and odour control
In 2001, the City of Phoenix, Arizona (USA) committed to the conversion of the existing high-rate anaerobic digestion process at the 8.9 m3/s 91st Avenue Wastewater Treatment Plant (WWTP) to a multi-phase process (acid/methane, mesophilic/thermophilic) to optimise existing digestion capacity and achieve Class A biosolids. The improved solids reduction is anticipated to double the ammonia load in ...
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Lab-scaled digestibility study of wastewater sludge treated by thermal hydrolysis
ABSTRACT High-solids mesophilic anaerobic digestion (HS-MAD) processes employing thermal hydrolytic pretreatment (THP) have gained much interest in recent years; primarily because they have been shown to produce Class A biosolids in accordance with EPA 503 regulations, but also because they represent an economical approach to the maximization of available anaerobic digester volume. The ...
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Screw Press Dewatering: Revolutionizing Solid Waste Treatment
Screw press dewatering machines have emerged as indispensable tools in the realm of solid waste treatment, playing a pivotal role in minimizing waste volume, efficiently managing waste streams, and optimizing resource recovery. From municipal wastewater treatment plants to agricultural and industrial settings, these versatile machines find applications across a wide spectrum of waste management ...
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Screw Press Machine in Biogas Slurry Dewatering
Biogas production is a sustainable and environmentally friendly way to generate energy from organic waste. However, the process generates a byproduct called biogas slurry, which is rich in nutrients but also high in water content. Managing this slurry efficiently is crucial for reducing transportation costs, controlling odors, and maximizing the benefits of nutrient-rich byproducts. In this ...
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Enhancing Efficiency in the Paper Pulp Industry with Dewatering Machine
The paper pulp industry plays a pivotal role in providing essential products we use every day, from newspapers to packaging materials. However, the production of paper pulp generates large quantities of wastewater, and one crucial step in managing this byproduct is dewatering. In this article, we will explore the vital role of dewatering machines in the paper pulp industry, how they work, and ...
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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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New processes for the improvement of sludge digestion and sludge dewatering
INTRODUCTIONThe examination of numerous sewage sludges from municipal wastewater treatment plants leads to the conclusion that on the one hand dewaterability of these sludges worsens and that on the other hand dewaterability of sludges becomes more and more important due to increasing disposal costs. Especially wastewater treatment plants with inflows from the food processing industry often face ...
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Why Use Manure Screw Press Machine in Animal Waste Management?
A manure screw press machine is a mechanical device designed to separate solid and liquid components from animal manure or organic waste. It's commonly used in agricultural settings, especially in livestock farms, to manage and process manure efficiently. The manure screw press operates by using a rotating screw within a cylindrical screen. As the manure is fed into the machine, the screw's ...
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Fate of phosphorus during anaerobic digestion of sludge from an EBPR plant
As part of their ongoing commitment to produce safe sewage sludge for recycling to agricultural land, Anglian Water are expanding their enhanced sludge treatment operations at four key sites across the Eastern region. The project at Whitlingham STW uses thermal hydrolysis as a pre-treatment to anaerobic digestion as the main sludge treatment process. As well as producing an enhanced treated ...
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Enzymatic treatment effects on dewaterability of anaerobically digested biosolids-I: performance evaluations
Abstract This paper reports on the ability of an enzymatic pre-treatment to significantly improve the conditioning of wastewater sludges (biosolids) significantly using by a polymeric flocculant. Experiments used anaerobically digested biosolids samples from two different municipal wastewater treatment facilities, and a formulation containing several different hydrolytic enzymes. Samples were ...
By JBMbio.com
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Pollutants in Urban Wastewater and Sewage Sludge
Untitled Document Executive Summary Water policy in the European Union is aiming to promote sustainable water use and a major objective of the new Water Framework Directive (2000/60/EC) is the long-term progressive reduction of contaminant discharges to the aquatic environment in urban wastewater (UWW). Sewage sludge is also a product of wastewater treatment and the Urban Waste ...
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