No new landfill site in waste plan

Waste-to-energy plant to reduce landfill need

Consultants from AMEC Foster Wheeler, government's consultants on the waste management strategy, sort through waste as part of a survey of the island's trash last week.

Turning trash into electricity in a waste-to-energy plant is a central part of government’s new national waste management plan, which includes no new landfill site.

Jim Schubert, the senior project manager, said the plant would be key to achieving the ambitious target of diverting 95 percent of waste from landfill.

The existing George Town site – dubbed Mount Trashmore – will be capped, revegetated and potentially turned into a park with walking trails, he said.

The only landfill included in the plan is a 4-acre pit on the current site, which will be used to dispose of the residual ash following the waste-to-energy conversion process, which reduces trash to 3 percent of its original volume.

Government is negotiating land purchases in the George Town area for the rest of the infrastructure, including a recycling depot, composting plant and the waste-to-energy facility.

Mr. Schubert said everything that is not suitable for composting or recycling, with the exception of hazardous waste, could be fuel for a waste-to-energy plant, meaning the islands’ landfill requirements would be radically reduced.

“Some ongoing provision for landfill will still be required, but the large reduction means no new site will be required and, instead, the landfill requirement will be met by the design of a new engineered landfill that can be accommodated within the present boundary of the George Town landfill,” he said.

Mr. Schubert accepted there had been criticism around the speed of the process, but said the research and reporting phase is now over and government would now move swiftly, beginning the procurement process in October with a view to having a contract in place by next spring. He said groups of companies would be asked to form mini-conglomerates to bid collectively for the Integrated Solid Waste Management Strategy contract.

Despite the likely requirement for an environmental impact assessment on the waste-to-energy plant, he believes a network of new waste treatment facilities will be in place by the time the current landfill reaches capacity, expected in five or six years at current rates.

“These are now quite aggressive time limits to get it done,” he said.

A timeline to completion, released with the business case report, anticipates completion of construction of the new facilities by the end of 2019.

Experts from Amec Foster Wheeler, the government’s consultants on the project, were on island last week, sorting through piles of trash as part of a survey that will help inform the bid process.

They sorted through 10 sample loads of 200 pounds each from both commercial and residential trash trucks and will provide would-be contractors with a breakdown of the different amounts and types of materials found in trash on the island.

Mr. Schubert said different materials have different value as feed for a waste-to-energy facility, and the information will affect the bid specifications, though not the commercial viability of the venture. He said the data, on more than 30 types of materials, will also help inform policy around recycling and composting.

He said it is a misconception that the aim of a waste-to-energy plant is to generate profit from the trash. He said it is really a processing facility that has the advantage of being able to recoup some costs through selling electricity to the grid.

It is expected to generate around 5 MW of power – less than 5 percent of Cayman’s requirements. Amec’s experts also took gas samples from the landfill site to test the viability of collecting methane from the site once it is capped, to supplement the waste-to-energy process.

Mr. Schubert said it is not unusual for integrated waste management strategies on this scale to take considerable time to put together.

He said previous strategies had simply been “unsolicited proposals” for either landfill or waste-to-energy plants, and had not looked at the complete picture.

Open house sessions on the draft outline business case for the Integrated Solid Waste Management System will be held at the Government Administration Building on Grand Cayman on Oct. 4, from 5-7 p.m., at the National Trust House on Little Cayman on Oct. 5 from 11:30 a.m. to 1:30 p.m., and at the Aston Rutty Civic Centre on Cayman Brac on Oct. 5. from 5-7 p.m.

The report is also published along with an online questionnaire on the Ministry of Health website at Residents have until Oct. 7 to provide feedback.

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  1. “Arguments against incineration” Wikipedia:
    “The highly toxic fly ash must be safely disposed of. This usually involves additional waste miles and the need for specialist toxic waste landfill elsewhere. If not done properly, it may cause concerns for local residents. The health effects of dioxin and furan emissions from old incinerators; especially during start up and shut down, or where filter bypass is required continue to be a problem. Incinerators emit varying levels of heavy metals such as vanadium, manganese, chromium, nickel, arsenic, mercury, lead, and cadmium, which can be toxic at very minute levels.”

    Having incinerator in proximity to Camana Bay, SMB and prime residential area is not a good idea. Even the newest generation incineration technology can’t achieve 100% capture of toxic emissions.

    In the USA various regulations for each incinerator type stipulate the detailed monitoring, reporting, performance test, and planning requirements. Does this country have such regulations?

    By the way, one is being run at Health City. Does it include air pollution control equipment? May be the unit doesn’t have such equipment. Then who and how often monotors its emissions? What kind of documentation is kept on site?
    I think people would want to know before giving green light to this New plan.

  2. Bell , I agree with your comment , and I’m wondering if these politicians that are trying to do this have the slightest idea of how this project have to be done , or are they just been lead by someone smarter than them in this kind of project .

  3. The dirty truth about China’s incinerators.

    Clean Air Act Guidelines and Standards for Waste Management.

    Hospital, Medical, and Infectious Waste Incinerators (HMIWI): New Source Performance Standards (NSPS), Emission Guidelines, and Federal Plan Requirements Regulations.

  4. Residents of the Cayman islands must be really concerned with this “No new landfill site in waste plan”.
    After reading the “The dirty truth about China’s incinerators” you will understand why.
    If they can’t make airport parking system work what do you think is going to happen if they proceed with incinerator being built anywhere on Grand Cayman, let alone in proximity to SMB and Camana Bay?
    There is always something that prevents things from working (properly). Here is another example example in addition to airport parking: ” weather radar is currently not operating due to the failure of an operating part.” “We’ve been told the part has been shipped, but we’re not sure what that means,” “..some replacement parts are kept on hand, but the part needed now was not one that would normally fail. ” LOL

  5. Bell , politicians don’t care or concerned about people , as long as they can say on the campaign, look at what I did and what I am doing . I think that if we can provide them facts that the salesman didn’t provide , and they don’t read them , then they should have to face us the people in a protest about the project .