29 September 2007

CAMBI UK Thermal Hydrolysis Plant Project Underway

The Nowegian Anaerobic Digestion specialist Anaerobic Digestion technology provider has started their new UK Anaerobic Digestion plant project as below:-

On 15 June 2007 Black & Veatch (then Gleeson Ltd.) issued a binding letter of intent (LOI) to Cambi AS for a 4-reactor Thermal Hydrolysis plant for the pre-treatment of sludge prior to anaerobic digestion for a sludge treatment centre located at the Whitlingham Wastewater Treatment Works, Norwich.

The LOI will allow Cambi to start the project prior to final contract signature, expected in August 2007. The project has a delivery period of 12 months from start to completion. The contract is part of a contract for sludge treatment upgrade between B&V and Anglian Water.

Whitlingham WWTW is one of 4 sludge treatment centres to be set up/upgraded in the next 5-year plan of Anglian Water, starting 2006. The project will treat 17,000 tonnes DS. Total for Anglian's 5-year plan is to treat sludge from 6 million p.e., approx. 100,000 tonnes TDS.

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26 September 2007

A Historical Perspective: Have Things Changed?

Have things really changed that much from the article below, from the sentiments expressed by those who installed agricultural AD Plants, more than 10 years ago?

Let's get some discussion going! Email us your Feedback to info@anaerobic-digestion.com .

Here is the article from May 1995:

Anaerobic Digester Survey of California Dairy Producers

D. Morse 1, J. C. Guthrie 1, and R. Mutters 2
1 Department of Animal Science, University of California, Davis 95616-8521
2 University of California Cooperative Extension, 2279 Del Oro Avenue, Suite B, Oroville 95965

We conducted a survey to identify for the US Environmental Protection Agency examples of and reasons for the failure of many previously installed methane recovery systems. Six dairy producers participated in this survey.

Installation costs of systems ranged from $100,000 to $950,000. Three producers have continued their dairy operations but no longer use methane recovery technology. Two producers were favorable to the technology but no longer operate a dairy.

Of those surveyed, only one producer continues to use methane recovery technology. Identified problems associated with unsuccessful operations included poor design, collection of manure in a wet form, and incomplete cooperation from electric companies.

Producers found that the technology required intense management and was economically risky. Increased cooperation between electric companies and small producers of electricity and greater prices paid for electricity might provide positive economic incentives that would encourage methane recovery and electricity generation.

One producer indicated that the benefits from anaerobic digester technology to be emphasized to potential users were income from sales of final solids and that nutrient value of both solid and liquid effluent streams as fertilizer sources.

Is this how it is now, or have the recent recent developments made a difference? Will the encouragement by improved ROCs payments in May's White Paper for the UK, make the difference? Why not give us your thoughts! If you give us your views and agreement to publish, suitable material can also be featured here in our future postings, and on our web site.

Enviro Solutions Website

The Enviro Solutions website is a great place to visit to find companies in the waste and environment sector. They also provide business news

For more information - Click Here

18 September 2007

Tyne and Wear Waste Managers Considering Anaerobic Digestion Option

Anaerobic digestion considered for Tyne and Wear:

Anaerobic digestion is one of the options up for strong consideration to treat residual waste across South Tyne and Wear.

The South Tyne and Wear Waste Management Partnership made up of three councils in the region - Gateshead Council, South Tyneside Council and Sunderland City Council - aims to tackle the region's 370,000 tonnes of household waste a year (see letsrecycle.com story).

Defra has already given the councils the go-ahead to draw up plans for residual waste treatment facilities to secure Private Finance Initiative (PFI) funding credits (see letsrecycle.com story).

Before doing so, the partnership has decided to launch a public consultation on its Draft Joint Municipal Waste Strategy to ask residents for their views, not only on residual waste treatment but also on recycling, composting, reuse and waste minimisation.

This is with the aim of diverting as much waste from landfill as possible and to increase recycling rates. In 2005/06 - the most recent year audited by Defra - the recycling rates for Gateshead, South Tyneside and Sunderland - were 20%, 21% and 19% respectively. All three councils met government-set targets.

Project director Fiona Brown said: "Three councils are coming together to work in partnership and produce a joint strategy on an issue that will impact on everybody. This consultation process will help to deliver a more efficient service around the management and treatment of waste.

"We really want residents to have their say on how to handle rubbish in the future and help us come up with solutions that are more sustainable and better for the environment," she added.

Options:
It has assessed nine options for residual waste treatment using a range of criteria.

These are:

- Anaerobic digestion (AD) of biodegradable wastes
- AD of all wastes
- Mechanical Biological Treatment with Refuse Derived Fuel to EfW
- MBT with RDF to landfill
- Autoclave
- EfW
- Alterative Thermal Treatment (ATT)
- Aerobic digestion
- EfW with CHP

In its consultation document, council officers said autoclaving - where waste is cooked at high temperatures was cost-effective, environmentally-friendly and had high recycling rates. For more at LetsRecycle click on the title.

13 September 2007

New ArrowBio MBT & Anaerobic Digestion Facility Project Starts

In July 2007, Oaktech Environmental signed a contract with Avondale Environmental Ltd. to commence the Design Development of a 70,000 tonnes per annum ArrowBio facility at the Avondale Landfill Site in Falkirk, Scotland.

The ArrowBio process is described as a unique, water-based mechanical-biological treatment for solid waste, which includes anaerobic digestion stages.

ArrowBio’s strengths are stated as residing in its unique ability to reclaim resources for recycling and produce green energy from the biodegradable residues through simple, flexible and effective design.

Avondale Environmental, who own and operate the Avondale landfill in the Falkirk area just off junction 4 of the M9 motorway, have chosen ArrowBio as their preferred technology partner for the development of a processing facility for treating mixed waste from both household and commercial sources. Waste will be diverted from landfill with recyclable materials recovered and renewable electricity generated for supply to the national grid.

Upon completion of the Design Development phase, the construction of the Plant will take 16 months, subject to receiving the necessary consent. This will provide nearby Local Authorities with the opportunity of moving some way towards landfill diversion targets required by the EU Landfill Directive.

Following on from this success, Oaktech Environmental, distributors of the ArrowBio process in the UK & Eire, in collaboration with Monsal Ltd., UK market leader for the provision of advanced anaerobic digestion and biogas related technology, will be jointly exhibiting at the RWM Exhibition, NEC Birmingham on 11th – 13th September.

Do visit them at Stand 1100 for details on how they will be working together to deliver the ArrowBio Falkirk project, as well as for updates on other of their projects currently underway in London and Northern Ireland.

To find out more about the RWM Exhibition go to: http://www.rwminfo.com.

You can also visit their web site at http://www.oaktech-environmental.com and http://www.monsal.com for further information and regular updates.

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