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INCINERABLE HOSPITAL WASTE

 

As part of its mission to offer user friendly waste disposal systems, Aireff offers ultimate solution to dispose hospital / pathological waste where other conventional methods fail. This brochure highlights features of the systems tailored by Aireff detox Inc.

Inceinerable Hospital Wastes :

Typical hospital wastes, which are preferably disposed of by incineration, may be categorised as follows:

1. Ward Waste: Ward and sanitary dressings, soiled or infected bedding, infected garments, disposable paperware, flowers, plastic waste, periodicals, general ward refuse and sweepings, etc.

2. Theatre and laboratory waste: Operating theatre waste, amputations, human tissue, infected blood wastes, disposable garments, plaster casts, pathological wastes, laboratory wastes, specimens, sputum, animal carcasses, drugs and medicines, etc.

3. Maternity waste: Placenta, maternity dressings, disposable napkins, soiled or disposable bedding, garments, etc.

4. Plastic waste: Disposable instruments, syringes, etc., disposable petri dishes and similar plasticised paperware, disposable cutlery, plastic containers and styrene packaging, disposable bedpans and urine bags, disposable respiratory accessories, dialysis equipment, etc.

5. Kitchen and stores waste: All food waste, dirty paper, food wrappings, packaging, general refuse and sweepings, cartons, chests, polystyrene packing, general stores waste, general canteen waste including vending cups, etc.

6. Paper waste: Letters, documents and other paper articles that have been in contact with patients and which may not be reclaimable as salvage.

Principle:

Wastes are distilled and burnt by a Pyroltic process with low oxygen support in the combustion chamber (or reactor).

Gases produced are burnt and cleansed in high temperature post - combustion chamber, then passed into the heat recovery plant (optional) or passed through flue gases cleaning system (cyclone/scrubber) or forced to draft through a stack.

Heat necessary to the process is provided by controlling the combustion of the wastes (if high calorific value) and also control of auxiliary fuel (oil fired or electrical heating) Burners intervene to maintain the preset temperatures in Pyrolysis and Post Combustion chambers (reactors).

The optimal temperatures in Pyrolytic and post combustion chambers guarantee the total gas cleansing and elimination of all odors.

Pollution Free Operation:

DIOXIN and FURAN (carcinogenic compounds) may be found in poorly designed incinerators. The science of combustion is applied to every incinerator and Aireff engineers ensure 100% safe end products.

Low air and gas velocities within the primary chamber together with complete second stage combustion ensure that emissions are minimal. The equipment complies fully with the requirements.

The system is modular and versatile operating as a distinctly efficient two-stage combustor. In the first stage chamber thermal decomposition of waste occurs in an oxygen-starved atmosphere and the volatile gases driven off pass to the second stage chamber where they are mixed with additional air and burnt at 800/1200 C. The combustible char left in the primary chamber is slowly oxidized to ash.

The second stage chamber is designed to maximize residence time for gas phase combustion while minimizing "support fuel" consumption. An internal venturi section not only ensures high turbulence for final burn-out but also induces natural air in proportion to the mass flow of flue gas. The advantage of this feature is that semi automatic air regulation is provided in the final stage of combustion with no electrical or mechanical controls. Secondary burning is continuous with or without fuel support depending on temperature conditions.

Technical Highlights:

The system are designed in accordance with International Codes.
Renders dioxin and furan free end products and flue gases.
Refractories suitable to stand 1460 C to 1600 C
High quality equipments and accessories Can be tailored to meet specific requirements of users, compatible to the waste types.
The heating can either be by auxiliary fuel (LDO/FO) or electrical.
Manual / Electro-Mechanical (Semi Automatic / Automatic) feeding systems for every type of wastes may be offered.
Manual or mechanical ash removal system may be offered.
Automatic electronic control of the pyrolytic process, gas-cleansing temperature and of the whole combustion cycle.


Automatic Loading (Optional):

Pneumatically operated ram loading systems designed for ease of operation and maximum operator safety ensure that the plant remains in a controlled-air mode during the charging period by reducing ingress of uncontrolled air with minimum disturbances to combustion chamber. The operator simply places waste in the reception hopper, closes the lid and presses the start button. The automatic charging cycle does the rest, protecting the operator fully potential exploding objects in the waste and from exposure to thermal radiation. A solid state programmable controller enables the charging cycle to be tailored for individual customer requirements and allows for future adjustments if waste conditions change.

Waste Heat Recovery (Optional):

Under certain conditions it is feasible to convert the heat generated as a result of the combustion processes into usable steam or heated air for the further use. The use of a W.H.R. systems can show considerable fuel saving in the transfer of energy from building wastes.

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