1. Burning rate: 250 Kg/hr.
2. It should be able to Operate not Less than 10 hours/day
3. This incinerator must be able to destruct all combustible wastes produced by hospitals, private clinics, laboratories, institutes, etc…
4. Design Specification: Types A, B, C, D, and E of medical waste
5. “PYROLYTIC” combustion, by controlling the gasification of waste.
6. The incinerator must avoid the release of black smoke and fine dust, (Smokeless) during the loadings.
7. It should be able to reduce the volume of wastes by 98%.
8. It should be able to hold emission in the second burn with gas residence of not less than 2 seconds.

The incineration should be completely free from visible smoke as well as offensive odours.

9. The lower calorific power (L.C.P) of this waste will be 3,500 kcal/kg

• The Temperatures of combustion:Minimum will be 850^oC and max 1400^oC
• Post combustion: >1100^o

10. The Internal diameter of the Chimney: Ø 400mm² and its height: 8 Meter
11. The Volume of the combustion chamber: Not Less Than 2.3 M³
12. Burner operation should be Automatic On/Off
13. Fuel : diesel, LPG, Natural Gas, Bio fuel
14. The supplier must provide  necessary information for the best of  the installation

This incinerator with “PYROLYTIC” combustion must have:

15. A combustion chamber of waste:

* Perfectly tight door for the manual loading of waste.The loading should be Manual, Batch Load,

* A burner of lighting which the use is limited to the ignition of waste.

* Top Loading loading with door seals gone up on hinges, wheel of screw plug, flexible joint, and stuffing insulating out of refractory.

* The insulation of the combustion chamber should be composed of refractory bricks, having a high content of aluminum and insulates bricks in order to assure a minimum temperature on   the outside sheet metal.

* Composition of the refractory;

• Refractory concrete :
  • . Thickness : ≥100 mm
  • . Nature: 42% of Al203
• Insulate in fibrous panels :
  • . Thickness: ≥75 mm
• Nature: Calcium silicate.

* Burner of lighting of waste, with fuel, standard mono-bloc casting guiding plunging flame, lighting and safety of electronic ignition, permanent ventilation, electromagnetic sluice gate of regulation and isolating valve.

* Plate of combustion in Carborundum, avoiding the fixing of glass and slags.

16. Load Method: Top Loading

 

17. A chamber of post combustion of gases

* A burner of combustion of gases,

* A device of injection of air allowing a total recombustion of gases,

* A device of air inlet of cooling of waste gases,

* A sheath of evacuation of the gases burnt.

* Carcass in strong sheet steel with support of connection.

* Composition of the refractory;

• Refractory concrete :
  • Thickness : ≥180 mm
  • Nature: 65% of Al203
• Insulate in fibrous panel :

GOODS:  ONE INCINERATORS IN ACCORDANCE WITH THE			SUPPLIER’
REQUIREMENT			S	OWN
			PROPOSED
			SPECIFICA
			TION/
			CONFIRM
			ATION
			SPECS
	Incinerator walls and roof : 1550 °C castable monolithic refractory
	concrete
	Temperature: ≥90 °C
	Insulation to walls: 1000 °C castable insulation
	Electricity supply required: 220volt, 15amp single phase
	Controls
	Draught control: barometer indicator, door operated draught limiter
	Air supply: built-in forced heated air ducts, primary and secondary
	(intensifier)
	Electric: control panel includes-circuit breakers, main switch, timer,
	pilot lights, 2 set point pyrometer and one set point pyrometer
	3.Experience and Qualifications
	Experience and Qualifications
	Company
	The companies responding to this ToRs must have at least 5 year
	experience of incinerator installation and maintenance or related
	field. It must be registered, have trader’s licence and be compliant
	with tax requirements.
	Project Leader
	The proposed expert should be able to demonstrate a breadth of
	relevant experience in operations and maintenance of incinerators or
	environmental management. The project leader should have at least
	a degree in environmental management or mechanical engineering
	or  related  field  with  at  least  5  year  experience  in  project
	coordination.  Previous  work  in  Lesotho  or  Southern  African
	Development Community (SADC) experience will be an advantage.
	Health and Safety Officer
	He/she  should  be  a  health  and  safety  professional,  such  as
	occupational health and safety; safety, health and environment, with
	at least 4 years of carrying out compliance inspections and audits of
	incinerators or construction projects.  A minimum of a diploma in
	health  and  safety  or  a  relevant  discipline  is  required.   Prior
	experience in Lesotho will be an added advantage.
37

GOODS:  ONE INCINERATORS IN ACCORDANCE WITH THE				SUPPLIER’
REQUIREMENT				S	OWN
				PROPOSED
				SPECIFICA
				TION/
				CONFIRM
				ATION
				SPECS
	Height from base: 11m and if there are buildings within 30m of the
	incinerator, chimney must extend at least 3m above the apexes of all
	the roofs of such buildings
	Diameter of chimney at top: 430mm
	Weight of stack: ± 500kg
	case and stack be painted with 400 °C heat resistant black paint
	Burners
	1st chamber 850 oC -900oC
	2nd chamber 1000oC
	Variable speed combustion air blowers
	Primary chamber volume ±1.05 cubic metres
	Mixing chamber volume ±0.30 cubic meters
	Settling chamber volume ±0.89 cubic meters
	Weight excluding chimney ±6 400kg at manufacture
	Firing tools supplied: Hoe, poker and rake
	Dimensions
	Length ±2 125mm
	Width ±1 890mm
	Height  ±2 125mm
	Extra width for burners	±1 000mm
	Loading door opening 610mm×540mm
	Hearth area ±1.19 square metres
	Description of grate/hearth: A full hearth to be supplied to prevent
	contaminated  liquids  from  flowing  into  ash  pit  without  being
	incinerated
	Compliance with South African Atmospheric Pollution Prevention
	Act No. 45 of 1965 or equivalent air pollution standard
	Documents to be supplied : Operations and maintenance manual and
	standard operating procedures (SOPs)
	Emission controls:
	heated refractory screen
	Low velocity grit settling chamber
	Stainless steel arrester screen
	Refractory material: alumina content ≥49% and thickness average
	102mm
	Bake out: to be done over 2-3 days
	Materials of construction
	Case: 5mm mild steel
	Bracing: heavy angle and channel
	Hearth: 1550 °C
	Ashing door: high grade cast iron
	Loading door 5mm mild steel lined with 1550 °C castable general
	purpose high strength, high abrasion resistant monolithic refractory
	concrete
		36

TECHNICAL INCINERATORS SPECIFICATIONS FOR 2 hospitals

 

INTRODUCTION

• All the incinerators to be supplied and installed must meet the Government of Kenya waste Management Regulation 2006 in particular 3^rdschedule regulation (26, 47) pertaining classification, standards, criteria, and procedure for installing/operating incinerators as authored by the National Environmental Management and Coordination (waste management) regulation 2006, legal notice No. 121 of 29^th September 2006
• The capacity of the incinerator required should be to the specifications with a capacity to burn 100kgs/Hr
• The incinerator shall be run on a 3-phase power supply (mains)
• For the technical evaluation, not only the treatment plant but the entire system will be considered.  It will be the responsibility of the Bidder to supply a full system, including all eventually additionally necessary secondary systems and additional equipment.
• The system offered shall be designed to operate normally under the conditions of the purchaser’s country. The conditions include Power Supply, Climate, Temperature, Humidity, etc.
• The Bidder must provide a warranty for one year.
• All text, parameter etc. on all control operating interfaces as well as on information displays and on print-outs shall be in English language.
• The Bidder is responsible for all permits and approvals for importation. The Bidder shall provide all the necessary documentation in order to facilitate the legal requirements for the installation and putting into use of the equipment.
• Period of Execution is 90 days from contract signature for delivery to site and completion of all verification operations required for the issuance of provisional acceptance.
• Representatives of the Contracting Authority and the Beneficiary, together with the Bidder’s representative, shall carry out the controls, testing and initial approval for provisional and final acceptance as.  The provisional and final acceptance shall take place at the final destination.
• After-Sales Service: The Bidder is required to ensure that a maintenance, service and repair centre, which is authorised by the Manufacturer, and which is able to rapidly supply genuine spare parts and consumables recommended by the Manufacturer is available throughout the one year warranty period. In fulfillment of this requirement with their offer Bidders must submit a statement signed by a representative of the manufacturer:
  • Providing the name and address of its authorised maintenance, service and repair centre,
  • Confirming that this authorised maintenance, service and repair centre is able to rapidly supply genuine spare parts and the consumables recommended by the Manufacturer; and

 

• The Bidder will be responsible to deliver and install all to be supplied equipment at to be set up waste handling areas in the Republic of Kenya. The Bidder shall deliver a time schedule over the complete construction and assembling period. The delivery and installation time must be agreed between bidders, target Hospital and the Contracting Authority. The treatment plant must arrive pre-assembled. The Bidder shall ensure that all parts of the plant transported by sea shall not be shipped as “deck cargo”.

 

• It is expected that the Bidder cooperates closely with the contractor for the new waste handling building/area and will make available all needed technical information, drawing, etc. to the contractor.

 

• The Bidder shall supply and install the incinerator with the following attached specifications

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TECHNICAL INCINERATORS SPECIFICATIONS FOR EAPHLNP
ITEM	DESCRIPTION	UNIT	QTY	RATE	KSHS.
	Incinerator
	To supply and install the following		2NO.
	Hospital Incinerators to Nema standards
	The following are the incinerator specifications :-
A	Ø      Waste type:      Mixed type 0,1,2,3 & 4 hospital/clinical bio hazard waste
	Ø      Waste density:   125 to 350Kg/M³
	Ø      Waste CV:        4000 KCAL/Kg
	Ø      Moisture content:   10-25%
	Ø      Estimated ash residue: 5-10%
	Ø      Nominal capacity:   100Kg/hour batch load
	Ø      Secondary chamber:  2 second @ 1100ºC
	Ø      Environmental:    NEMA ACT           (EMCA) 1999
	Clean Air Act 1999
	BS3316 1987
	Equipment	Set
	The Incinerator must comprise of: –
	Ø      Manual Loading door (heavy duty steel door with appropriate refractory lining)
	Ø      Horizontal solid hearth, refractory lined primary combustion chamber 800mm diameter x 2100mm long
	Ø      Full sized bulk load/ash removal door
	Ø      1 off diesel-fired ignition burner – temperature controlled
	Ø      1 off combustion air supply fan and distribution system, automatic control
	Ø      High capacity secondary combustion chamber 2 second @ 1100ºC with
	Ø      1 off diesel-fired afterburner – temperature controlled
	Ø      Control Panel – automatic operation
	Ø      Temperature indication primary and secondary chambers 0-1200ºC. Both chambers must be insulated with refractory material (super duty 100mm thick firebrick with 25mm thick calcium silicate insulation)
	Ø      Refractory lined flanged chimney to a height of 10M and it must be 3m above the height of any existing roof adjacent to the incinerator
	Carried Forward To Collection Page.
	NOTE: WE REQUIRE TWO INCINERATORS. ONE
ITEM	DESCRIPTION	UNIT	QTY	RATE	KSHS.
B	Diesel Tank:
	To provide for diesel service tank (Capacity 400 litres) including level indicator The tank should be connected to the incinerator at a higher level to enable free-flow of diesel from the tank to the incinerator. The connecting pipe must be a black pipe of approved gauge and diameter. Include other accompanying accessories and fittings	Item	1
C	Installation & commissioning works
D	Positioning of Incinerator: – Provide lifting gears as forklift, gantry, rollers, and lifting jacks and position incinerator.	Item	1
E	Connect burners to fuel supply.	No.	2
F	Chimney Installation:
G	Composition of the chimney: – Provide a chimney with scrubber (for filtration) Provide lifting gear to hoist, erect and mount chimney, and provide supports slings as necessary. Allow for cutting of tree branches to facilitate the exercise. The chimney shall be painted with approved heat resistant paint after installation.	Item.	1
H	Commissioning & Training:
	Testing set operating parameters, training of operators and technical staff.	Item	1
I	Commissioning Maintenance Contract
	Before the expiry of the warranty/signing off, the suppler shall provide a one-year replacement service parts (e.g. filters, air filters), the Quarterly routine maintenance price per quarter for three (3) quarters. Maintenance contract proposal).  The maintenance contract price includes labour, transport and accommodation for the attending technicians.	Item	3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EVALUATION CRITERIA

Evaluation shall be carried out in four stages namely preliminary examination of documents for conformance with mandatory requirements, technical evaluation, site visit and commercial evaluation.

Stage One: Preliminary Examination

– Preliminary Evaluation under special condition of the tender. These are mandatory requirements.

This shall include confirmation that a bidder has complied with the special condition of tender above.

Failure to meet any one of the above requirements stated in the special conditions of the contract shall lead to automatic disqualification.

Stage Two: TECHNICAL EVALUATION (70 MARKS)

 

ITEM	DESCRIPTION	UNIT	QTY	MARKS ALLOCATED	MARKS RECEIVED
	Incinerator
	To supply and install the following		2NO.
	Hospital Incinerator to Nema standards
	The following are the incinerator specifications :-
A	Ø      Waste type:      Mixed type 0,1,2,3 & 4 hospital/clinical bio hazard waste			35
	Ø      Waste density:   125 to 350Kg/M³
	Ø      Waste CV:        4000 KCAL/Kg
	Ø      Moisture content:   10-25%
	Ø      Estimated ash residue: 5-10%
	Ø      Nominal capacity:   100Kg/hour batch load
	Ø      Secondary chamber:  2 second @ 1100ºC
	Ø      Environmental:    NEMA ACT           (EMCA) 1999
	Clean Air Act 1999
	BS3316 1987
	Equipment	Set
	The Incinerator must comprise of: –
	Ø      Manual Loading door (heavy duty steel door with appropriate refractory lining)
	Ø      Horizontal solid hearth, refractory lined primary combustion chamber 800mm diameter x 2100mm long
	Ø      Full sized bulk load/ash removal door
	Ø      1 off diesel-fired ignition burner – temperature controlled
	Ø      1 off combustion air supply fan and distribution system, automatic control
	Ø      High capacity secondary combustion chamber 2 second @ 1100ºC with
	Ø      1 off diesel-fired afterburner – temperature controlled
	Ø      Control Panel – automatic operation
	Ø      Temperature indication primary and secondary chambers 0-1200ºC. Both chambers must be insulated with refractory material (super duty 100mm thick firebrick with 25mm thick calcium silicate insulation)
	Ø      Refractory lined flanged chimney to a height of 10M and it must be 3m above the height of any existing roof adjacent to the incinerator
ITEM	DESCRIPTION	UNIT	QTY	RATE	KSHS.
B	Diesel Tank:
	To provide for diesel service tank (Capacity 400 litres) including level indicator The tank should be connected to the incinerator at a higher level to enable free-flow of diesel from the tank to the incinerator. The connecting pipe must be a black pipe of approved gauge and diameter. Include other accompanying accessories and fittings	Item	1	20
C	Installation & commissioning works
D	Positioning of Incinerator: – Provide lifting gears as forklift, gantry, rollers, and lifting jacks and position incinerator.	Item	1	10
E	Connect burners to fuel supply.	No.	2	5
F	Chimney Installation:
G	Composition of the chimney: – Provide a chimney with scrubber (for filtration) Provide lifting gear to hoist, erect and mount chimney, and provide supports slings as necessary. Allow for cutting of tree branches to facilitate the exercise. The chimney shall be painted with approved heat resistant paint after installation.	Item.	1	10
H	Commissioning & Training:
	Testing set operating parameters, training of operators and technical staff.	Item	1	10
I	Commissioning Maintenance Contract
	Before the expiry of the warranty/signing off, the suppler shall provide a one-year replacement service parts (e.g. filters, air filters), the Quarterly routine maintenance price per quarter for three (3) quarters. Maintenance contract proposal).  The maintenance contract price includes labour, transport and accommodation for the attending technicians.	Item	3	10
	TOTAL			100

 

Pass mark for technical evaluation is 70/100 marks

 

Stage Three: Site Visit

The evaluation committee will visit the premises of the bidders who are responsive to technical  evaluation stage to verify the authenticity of statutory document submitted; ascertain the accuracy of the information given in the tender documents, assess firm’s capacity, location, among others.

The Tenderer will be automatically disqualified where false or fraudulent Information is found to have been given.

 

Stage 4 Commercial Evaluation

Bids that pass the above three (3) stages shall be compared on the basis of prices / cost quoted and the lowest priced will be considered the lowest evaluated bid and subsequently recommended for award. Prevailing market prices will be used to determine the price responsiveness of the bidders.

 

SECTION V – SCHEDULE OF REQUIREMENTS

 

ITEM NO	ITEM DESCRIPTION	UNIT	QTY. REQUIRED	UNIT PRICE (KHS)	REMARKS
1.	Supply, Delivery, installation and commissioning of Incinerator in	NO	1
2.	Supply, Delivery, installation and commissioning of Incinerator	NO	1

 

 

 

 

Signature of tenderer

 

Note: In case of discrepancy between unit price and total, the unit price shall prevail.

 

SECTION VI – STANDARD FORMS

 

1. Form of tender
2. Contract form
3. Confidential Questionnaire form
4. Tender security form
5. Performance security form
6. Bank guarantee for advance payment
7. Declaration form

 

 

 

 

1) Policy

– Waste disposal management shall be taken special note to prevent hospital infection.

– Infections wastes shall be managed, stored strictly and burned by a incinerator located at hospital site.

 

2) Waste Disposal Plan

1. a)Classification

– Medical wastes in hospital are classified as follows;

 

Infections Waste	Specially-controlled waste	Organ, needle, etc.
	Industrial waste	Rubber gloves, etc.
	General waste	Gauze, etc.
General Waste	Plastic, Rubber	Infusion bottle, etc.
	Paper, wood, Vinyl	Voucher, etc.
	Metal, Glass	Can, Glass bottle

 

1. b) Infections Waste Disposal

– Segregation: Infections waste disposal shall be segregated appropriately and packed in particular containers and delivered to particular storage. The segregation, packing and delivery shall be operated appropriately at each room such as outpatient, operation theater, blood collection room and dialysis room.

– Precaution: Infections waste shall not be place in other containers on the way of segregation, packing and delivery.

– Storage: Infections waste shall be stored at the storage in hospital site temporarily until infections waste is incinerated.

– Incinerator:

 

It is designed to sterilize medical waste , reduce its volume , and render its components unrecognizable all in one fully enclosed and automated system.

It combines direct heated steam , high pressure and shredding to treat infectious materials.

The contaminated waste is loaded into the upper stainless steel chamber where a heavy-duty shredder reduces the waste into small pieces. Using gravity, the processed material falls into the treatment chamber where every piece is steam heated to 134 and pressurized to 3 to bar for 20 minutes. The operating conditions are continuously monitored and validated to achieve complete sterilization.

The 60 minutes average duration process cycle is totally automated. A computerized system monitors the process and automatically prints a report with the essential sterilizing parameters at the end of the cycle for accurate record keeping.

The capacity is between 500 to 600 kg/cy.h or more.

Treatment cycle:

1- Loading ; the contaminated waste is automatically -loaded into the chamber of the unit

2-Shredding; the heavy-duty shredder cut the material into small pieces and features a unique reversing system to avoid jamming

3-Heat; saturated pressurized steam raises the temperature to 134 C and the pressure to 3 bar

4-Sterilization; the sterilization comes into direct contact with the shredding material (134 c , 3 bar) for 20 minutes

5-Cooling; temperature is lowered to 80 C by spraying cool water onto Double jacket of the treatment vessel, simultaneously, the unit returns to ambient pressure

6-Draining; the steam is condensed to water and discharged with the cooling water to the sanitary sewer system

7-vacuum; the remaining residual steam is vented out through a vacuum pump

8-Unloading; a digital signal informs the operator that all safe operating conditions have been met

The condition unlocks the unit and allows gravity unloading of the treated waste into a container

Teaching Specification

General Characteristics

Operational temp. max	160 C
Max Weight when filld with waste For a special hydraulic test. Kg	10500
Stress. Kg/ cm3	3.5
Steam Pressure. Bar	8
Max Steam Flow Kg/h	500
Compressed Air Bar	6
Electricity 380 V/3 – phase Surge Protection system	35KW
Operating Characteristics
Average Cycle Time. minutes	60
Process Wight Capacity . Kg	500 – 600
Density. Kg/m3	100
Average process wight capacity Kg./cycle microbial inactivation	200-300 8log 10
Waste volume reductin	80%
Consumption / Cycle
Steam. Kg	40
Electricity . KW/h	9
Water Liters	500