Recent advances in thermal technology have significantly improved the process of solid waste disposal. With modern thermal processes, many types of waste can be safely and efficiently handled, thus providing major benefits for both the waste producer and the environment. EnerWaste's Batch Oxidation System (the BOSTM) was designed as a zero discharge, low capital expenditure and low operating and maintenance cost approach to all scales solid waste disposal. The BOSTM utilizes a starved air gasification process which thermally converts waste products into a combustible gas. This two-stage process provides (1) complete conversion of carbon to an inert ash and EPA and EU compliant emissions with standard control equipment, and (2) a controlled heat output for efficient energy recovery. The unique modular design of BOSTM allows for application flexibility, simple installation, and ease of operation. With capacities from 1 to 480 tons per day of waste processing, the BOSTM is ideal for both small municipalities and industries, as well as large scale waste disposal applications. By adding thermal recovery equipment, the hot effluent gas from the BOSTM can be used to produce heat, power and other usable energy forms for sale or local use. Waste typically has high energy content and power recovery of up to 24 MW may be possible for the largest systems.
The two-stage BOSTM process uses batch gasification and syngas combustion/oxidation. The untreated solid waste is initially loaded into a primary chamber where it is thermally reacted under starved -air conditions and transformed into burnable gases and ash. Unlike typical thermal treatment methods, the BOSTM gasification reactions occur at relatively low temperatures under quiescent conditions. This minimizes the production of airborne 'fly ash' particulates, carryover of toxic metals, and NOx. The gasification process ensures nearly 100% burn-out of the waste and that the by-product ash is sterile with minimal residual carbon. Metals and glass in the waste stay with the ash in inert forms and can be recovered by conventional recycling methods. To complete the process, the gases from the primary gasification chamber enter the secondary combustion chamber where they are mixed with oxygen (taken from ambient air) and oxidized at high temperature to complete the process. The energy from hot gas effluent can then be recaptured for local heat, power or other energy form recovery.
The BOSTM process actively discourages many potential emissions problems such as particulates, NOx, many toxic volatile metals and dioxins/furans. However, our systems can incorporate either dry or wet scrubbers and other emission abatement systems to neutralize acid gases and absorb other dangerous by-products such as mercury. The systems can be designed to meet EMA and EU emission standards.
Since the BOSTM requires no pre-treatment of waste and has few moving parts, it has many advantages over other thermal treatment systems. Its durable, simple design is easy to install and operate. Once the system are loaded it requires no operator attention and thus has lower labor costs. The modular design allows for flexibility in application or added to meet capacities from 1 to over 240 tons per day. |
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| Small BOSTM systems can be skid mounted |
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| Almost 100% burn-out is achieved in the primary combustion chamber |
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| Every EnerWaste system has a simple PLC system that allows for easy automatic control |
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| EnerWaste systems are ruggedly built and very durable for years of trouble free operation |
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| Loose, baled, or bagged waste can all be handled by the BOSTM without any pre-processing. The system will also accept a variety of bulky items such as mattresses, discarded furniture, and vehicle tires |
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