Supply and installation of three 1000l ibc-based biogas reactor systems

Company profile demonstrating experience in biogas/anaerobic digestion system fabrication. Proof of having fabricated at least two biogas reactors (lab-scale accepted if heated and stirred). Three client reference letters. Submission of original manufacturer technical datasheets for all major components. Warranty undertaking for minimum 12 months. Detailed project implementation schedule.

The Agricultural Research Council (ARC) invites suitably qualified and experienced

service providers to submit quotations for the design, fabrication, delivery, installation,

testing, commissioning, and training for a complete 1000 L IBC-based biogas reactor

system, including all components required for a fully functional small-scale anaerobic

digestion and biogas production unit.

Figure 1 illustrates an example of the required 1000 L IBC reactor tank.

Figure 1 : Example of a 1000 L IBC reactor tank

The Supplier shall design, fabricate, deliver, install, test, commission, and provide

training for a complete biogas reactor system comprising the following:

• New 1 000 L food-grade IBC anaerobic digester

• Biogas collection, handling, and storage system

• Gas piping, valves, filters, gas bag, and booster pump

• Greenhouse enclosure heating system

• IBC heating blanket/jacket

• Mechanical stirring system

• Biogas appliance (cast iron gas stove)

• Gas flow meter/gas counter with data logging capability

• All fittings, connectors, valves, supports, and accessories required for a

complete operational system

• Assembly drawings, operating manuals, maintenance manuals, and warranty

documentation

3. Technical specifications

3.1 System components

Component Specifications

Reactor Tank description:

tank - Black 1 000L IBC (Intermediate Bulk Container)

-UV-stabilised polyethylene

-External galvanised steel cage for support

-Bottom steel pallet Base: Integrated IBC pallet, min. load 1500 kg

Tank modifications:

-Gas outlet nozzle,

-Sealed feed inlet

-Sensor ports

-Effluent outlet

Biogas Gas outlet at the top

collection Gas piping

& storage Gas storage:Minimum 500 L flexible gas storage bag manufactured from

UV-resistant PVC-coated fabric or equivalent suitable material.

Gas filtration: moisture trap and H2S filter

Booster pump: 0.5–2 m3/h, low-pressure biogas pump

Automated gas flow meter/gas counter with data logging capability (e.g.

BPC Titan, Smart Biogas, or approved equivalent).

Stirring 0.37 -0.55 kW tank mixer

system Impeller made of Stainless steel (non- corrosive)

Folding impeller type

Top-mounted, with an easily removable mounting frame

Heating IBC heating blanket (see Figure 2)

system

Greenhouse enclosure (see Figure 3)

6 mm twin-wall polycarbonate sheeting for cladding

3.2 Materials & Fabrication Requirements

• All slurry-contact surfaces shall be manufactured from HDPE, PVC,

stainless steel 304/316, or EPDM materials.

• All gas-contact surfaces shall be gas-tight and corrosion-resistant.
• All penetrations shall be sealed using appropriate bulkhead fittings or

welded flanges.

• The greenhouse enclosure shall be properly sealed and edged.
• The complete system shall be suitable for continuous outdoor operation

under South African environmental conditions.

• Workmanship shall comply with good engineering practice.

4. Delivery and assembly of the biogas system

The supplier shall:

• Deliver all equipment to the ARC designated site.
• Install and assemble the complete system on-site.
• Ensure all equipment is adequately protected against mechanical damage

and moisture during transportation.

• Clearly label the system with all required operational and safety labels,

including “Biogas – Flammable”.

• Provide all tools, consumables, and labour necessary for installation and

commissioning.

5. On-site quality testing, commissioning, and training

Following installation, the supplier shall perform the following:

• Hydraulic leak testing of the reactor system

• Gas leak testing at operating pressures of 20–30 mbar

• Functional testing of:

• Stirring system

• Gas booster pump

• Gas filtration system

• Gas flow meter

• Gas stove

• Verification of greenhouse enclosure integrity

• Verification of overall assembly quality

The supplier shall provide on-site operator training covering:

• System operation
• Feeding procedures
• Safety requirements
• Routine maintenance
• Troubleshooting procedures

Figure 2 Greenhouse enclosure heating system Figure 3 Heating blanket

Figure 4 Top mounted stirring mixer

6. Documentation to Be Supplied

The Supplier must provide:

• Assembly drawings/layout diagrams
• Operating & Maintenance Manual
• The bidder shall submit a written warranty undertaking confirming the minimum

warranty period, the components covered by the warranty, and the procedure

for warranty claims. Warranty certificate(s) for all supplied components shall be

submitted upon delivery and successful commissioning of the system.

• Spare parts list with pricing (filters, pump, valves, gas bag)

3.1 System components

tank - Black 1 000L IBC (Intermediate Bulk Container)

-UV-stabilised polyethylene

-External galvanised steel cage for support

-Bottom steel pallet Base: Integrated IBC pallet, min. load 1500 kg

-Gas outlet nozzle,

-Sealed feed inlet

-Sensor ports

-Effluent outlet

collection Gas piping

& storage Gas storage:Minimum 500 L flexible gas storage bag manufactured from

Gas filtration: moisture trap and H2S filter

Booster pump: 0.5–2 m3/h, low-pressure biogas pump

Automated gas flow meter/gas counter with data logging capability (e.g.

BPC Titan, Smart Biogas, or approved equivalent).

Stirring 0.37 -0.55 kW tank mixer

system Impeller made of Stainless steel (non- corrosive)

• Company profile highlighting relevant experience in fabricating and supplying

biogas units

• Proof that the supplier has fabricated at least two biogas reactors. This can

include lab-scale reactors, provided the lab units had a stirring system and were

heated.

• 3 client referrals/recommendation letters
• Lead time for fabrication and delivery
• Warranty terms

9. Special Conditions

• A company profile demonstrating experience in the design, fabrication, supply,

installation and commissioning of biogas systems or similar anaerobic digestion

systems.

• A minimum of three (3) client reference letters or recommendation letters as

proof of having successfully fabricated and supplied at least two (2) biogas

reactors. Laboratory-scale reactors will be accepted, provided that such

reactors incorporated both a heating system and a mechanical stirring system.

• A warranty undertaking on the bidder's official company letterhead, duly signed

by an authorised representative, confirming a minimum warranty period of

twelve (12) months, the components covered by the warranty, and the

procedure for submitting warranty claims. Warranty certificate(s) for all supplied

components shall be submitted upon delivery and successful commissioning of

the system.

• The original manufacturer's technical datasheets and product brochures for all

major components proposed, including but not limited to the IBC tank, gas flow

meter, gas booster pump, heating blanket, stirring system, gas storage bag and

greenhouse enclosure materials. The submitted documentation shall clearly

identify the manufacturer, model or product designation, and technical

specifications demonstrating compliance with this RFQ. Generic brochures,

copied images, catalogue extracts without technical specifications, or self-

generated product information shall not be accepted.

• A detailed project implementation schedule indicating the proposed fabrication,

delivery, installation, testing, commissioning and handover activities, together

with the estimated lead time and key project milestones from the date of receipt

of an official purchase order.

11. Pricing schedule

of Three (3) Complete 1 000 L IBC-Based Biogas Reactor Systems

Agricultural research council (nre: ae)

1. Introduction

The Agricultural Research Council (ARC) invites suitably qualified and experienced

service providers to submit quotations for the design, fabrication, delivery, installation,

testing, commissioning, and training for a complete 1000 L IBC-based biogas reactor

system, including all components required for a fully functional small-scale anaerobic

digestion and biogas production unit.

Figure 1 illustrates an example of the required 1000 L IBC reactor tank.

Figure 1 : Example of a 1000 L IBC reactor tank

2. Scope of Work

• Hydraulic leak testing of the reactor system

• Gas leak testing at operating pressures of 20–30 mbar

• Functional testing of:

• Stirring system

• Gas booster pump

• Gas filtration system

• Gas flow meter

• Gas stove

• Verification of greenhouse enclosure integrity

• Verification of overall assembly quality

testing of 3 biogas units 1

5 Start-up, commissioning & Each 1

training ()

6 After sales support and M&E Each 1

7 15 % contingency Each 1

Item Unit Unit Cost Qty Total

1 Design of biogas units including Each 1

detailed drawings , BOQ and

materials specification

2 Fabrication of biogas units Each 1

including:

(i) 3 x I 000 L IBC Reactor

tank,

(ii) 3 x gas collection,

handling and storage

(iii) 1 x greenhouse enclosure

(iv) 1x IBC heating blanket

(v) 3 x gas counter

3 Delivery of 3 x biogas units Each 1

4 On -site assembling and quality Each

testing of 3 biogas units 1

5 Start-up, commissioning & Each 1

training ()

6 After sales support and M&E Each 1

7 15 % contingency Each 1

No specific requirements found

The Supplier shall provide:

• Minimum 12-month warranty against material and manufacturing defects
• Warranty coverage for: reactor, greenhouse enclosure, gas bag, pump, valves,

filters, stove

8. Supplier Information Required with Quotation

Suppliers must include the following in their RFQ response:

• Company profile highlighting relevant experience in fabricating and supplying

biogas units

• Proof that the supplier has fabricated at least two biogas reactors. This can

include lab-scale reactors, provided the lab units had a stirring system and were

heated.

• 3 client referrals/recommendation letters
• Lead time for fabrication and delivery
• Warranty terms

training for a complete biogas reactor system comprising the following:

• New 1 000 L food-grade IBC anaerobic digester

• Biogas collection, handling, and storage system

• Gas piping, valves, filters, gas bag, and booster pump

• Greenhouse enclosure heating system

• IBC heating blanket/jacket

• Mechanical stirring system

• Biogas appliance (cast iron gas stove)

• Gas flow meter/gas counter with data logging capability

• All fittings, connectors, valves, supports, and accessories required for a

complete operational system

• Assembly drawings, operating manuals, maintenance manuals, and warranty

documentation

• Assembly drawings/layout diagrams
• Operating & Maintenance Manual
• The bidder shall submit a written warranty undertaking confirming the minimum

warranty period, the components covered by the warranty, and the procedure

for warranty claims. Warranty certificate(s) for all supplied components shall be

submitted upon delivery and successful commissioning of the system.

• Spare parts list with pricing (filters, pump, valves, gas bag)

7. Warranty

• Minimum 12-month warranty against material and manufacturing defects
• Warranty coverage for: reactor, greenhouse enclosure, gas bag, pump, valves,

filters, stove

• A contingency of up to 15% of the original contract value may be considered

where unforeseen work directly related to the original scope of work becomes

necessary during the execution of the project. Any utilisation of the contingency

shall be supported by a detailed written motivation, cost breakdown, and

justification by the end-user and shall be subject to prior written approval by the

delegated authority in accordance with the ARC SCM Policy. No additional work

shall commence without such written approval.

• Provide on-site training to ARC personnel on the operation, maintenance,

safety procedures and troubleshooting of the biogas reactor system upon

successful commissioning.

• Rectify, at no additional cost to the ARC, any defects identified during the

warranty period resulting from faulty workmanship, defective materials or

installation within a reasonable period after notification.

• Replace, at no additional cost to the ARC, any component found to be defective

during delivery, installation or commissioning with a new component of

equivalent or superior specification.

• Final acceptance of the biogas reactor system shall be subject to successful

installation, testing, commissioning and written acceptance by the ARC Project

• Submit all operating manuals, maintenance manuals, warranty certificates,

assembly drawings and commissioning records upon successful completion of

the project.

• Ensure that all installation activities comply with the applicable Occupational

Health and Safety Act, 1993 (Act No. ) and all other applicable

• Supply only new, unused and defect-free materials, components and

equipment that comply with the technical specifications contained in this RFQ.

• Provide after-sales support for all supplied equipment and components during

the warranty period. Such support shall include technical assistance,

troubleshooting, and the repair or replacement of defective components

covered under the warranty at no additional cost to the ARC.

All entities submitting a tender are eligible to apply. However, to be competitive, tenderers should aim to claim points under the specific goals: at least 51% ownership by Historically Disadvantaged Individuals (HDIs), Women, Youth, and/or Disabled Persons, and have a BBBEE Status Level of 1, 2, 3, or 4. The tender is not restricted to any specific company type (Partnership, Pty Ltd, etc. are all acceptable).

You must meet specific goals to claim preference points.

• B-BBEE: Minimum requirement is B-BBEE Status Level 2 (or Levels 1-4).
• Ownership: Points are available for 51% ownership by Historically Disadvantaged Individuals (HDI), Women, Youth, and Disabled Persons.
• You must submit proof of ownership and B-BBEE status with your tender to claim these points.
• The tender includes a declaration form where you must provide your company/firm name, registration number, and type of entity (e.g., (Pty) Ltd, Close Corporation).
• You must certify that the information and points claimed are true and correct. Fraudulent claims can lead to disqualification, contract cancellation, recovery of costs, restriction from future tenders for up to 10 years, and criminal prosecution.

Preference points are awarded for specific B-BBEE and ownership goals.

• B-BBEE Status Level: Minimum requirement is Level 2 (or Levels 1-4).
• Ownership: Points are available for 51% ownership by Historically Disadvantaged Individuals (HDI), Women, Youth, and Disabled Persons.
• You must submit proof of ownership and B-BBEE status with your tender to claim these points.

The tender includes a declaration form with contractual terms.

• You must provide your company/firm name and registration number.
• You must indicate your type of company/firm (e.g., (Pty) Ltd, Close Corporation, Partnership).
• You must certify that the information and preference points claimed are true and correct.
• If awarded the contract based on claimed points, you may be required to furnish documentary proof to the organ of state.
• Fraudulent claims or failure to fulfil contract conditions can result in: disqualification from the tendering process; recovery of costs, losses, or damages by the organ of state; contract cancellation; restriction from obtaining business from any organ of state for up to 10 years; and criminal prosecution.

Before completing the preference points claim form, you must study the general conditions, definitions, and directives applicable to the tender and the Preferential Procurement Regulations, 2022.

• Key definitions include: 'tender' (a written offer for goods or services), 'price' (amount tendered including taxes less discounts), 'rand value' (total estimated contract value including taxes), and 'tender for income-generating contracts' (offers for contracts that generate revenue for the organ of state).

Points are awarded based on price and specific goals.

• The maximum points for this tender are allocated as follows: Price 80 points, Specific Goals 20 points, total 100 points.
• The applicable preference point system is either 80/20 (for contracts up to R50 million) or 90/10 (for contracts above R50 million). The tender documents indicate that either system may apply, and the lowest acceptable tender will be used to determine which system is used.
• Points for price are calculated using a formula comparing your price to the lowest acceptable tender.
• Specific goals for which points can be claimed include: 51% HDI Ownership (6 points), 51% Ownership by Women (4 points), 51% Ownership by Youth (4 points), 51% Ownership by Disabled Persons (2 points), and B-BBEE Status Level 1-4 (2 points).
• You must submit proof/documentation to claim points for specific goals with your tender. Failure to do so means you will not receive these preference points.
• The organ of state reserves the right to require you to substantiate any preference claim at any time.

• Contact Person: Ms. Lungile Kubheka.
• Department: Supply Chain Management, Agricultural Research Council (ARC).
• Email: [email protected].
• Telephone: +27 (0)12 842-4078.
• Submission Email: [email protected].

• Submit your written quotation by email to [email protected] before the closing date and time.
• Submissions via links will not be accepted.
• Quotes must be submitted on official company letterhead and duly signed.
• Include the following compulsory documents (failure may lead to disqualification):

• Original valid Tax PIN or SARS Tax Compliance Status letter.
• Completed and signed Standard Bidding Documents (SBD) forms (including SBD 4).
• Your Central Supplier Database (CSD) registration number.
• BBBEE Certificate or Sworn Affidavit.

• Your quotation must indicate the delivery date.
• Late and incomplete submissions will invalidate the quotation.

Bidders must be registered on the Central Supplier Database (CSD) and provide CSD registration number. Must submit valid SARS Tax Pin or Tax Compliance Status letter. Must complete and sign all Standard Bidding Documents (SBD) forms. Must provide BBBEE Certificate or Sworn Affidavit. Must demonstrate proven experience in design, fabrication, supply, installation and commissioning of biogas systems or similar anaerobic digestion systems via company profile and minimum three reference letters for at least two biogas reactors (lab-scale accepted with heating and stirring). Must provide 12-month warranty undertaking. Must comply with all special conditions including OHS Act compliance, on-site training, defect rectification, and after-sales support. Quotations must be market-related; under-quoting leads to disqualification.

• Scope: Design, fabrication, delivery, installation, testing, commissioning and training for three (3) complete 1,000 L IBC-based biogas reactor systems.
• Detailed specifications are attached to the RFQ document.
• The successful bidder must deliver, install, test and commission the complete system at the ARC designated site within the agreed lead time.
• All materials, components and equipment supplied must be new, unused, free from defects, and comply with the RFQ specifications.
• Final acceptance is subject to successful installation, testing, commissioning and written acceptance by the ARC project manager or delegated representative.
• The bidder must submit a detailed project implementation schedule showing fabrication, delivery, installation, testing, commissioning and handover activities with estimated lead times and key milestones from the date of purchase order receipt.

• Scope: Design, fabrication, delivery, installation, testing, commissioning and training for three (3) complete 1,000 L IBC-based biogas reactor systems.
• Final acceptance requires successful installation, testing, commissioning and written acceptance by the ARC project manager or delegated representative.
• The bidder must submit a detailed project implementation schedule showing fabrication, delivery, installation, testing, commissioning and handover activities with estimated lead times and key milestones from the date of purchase order receipt.
• Price quotations valued between R2,000.00 and below R50,000,000.00 (including VAT) will be evaluated using the 80/20 principle as per the Preferential Procurement Policy Framework Act (2022 Regulations) and the Agricultural Research Council Preference Points System (see Annexure A).

• Prices must be quoted in South African Rand and inclusive of VAT, delivery, insurance, taxes, etc.
• A contingency of up to 15% of the original contract value may be considered for unforeseen work directly related to the original scope. Any use requires detailed written motivation, cost breakdown, justification by the end-user, and prior written approval from the delegated authority per ARC SCM Policy. No additional work may start without approval.
• The validity period for quotations is 60 days.
• No price adjustments or amendments to delivery particulars will be considered.
• Quotations must be market-related; evidence of under-quoting may lead to disqualification.

• Compulsory documents (failure may lead to disqualification):

• Original valid Tax PIN or SARS Tax Compliance Status letter.
• Completed and signed Standard Bidding Documents (SBD) forms.
• Central Supplier Database (CSD) registration number.
• BBBEE Certificate or Sworn Affidavit.

• Only bidders registered on the CSD will be considered.
• The RDP goal promotes South African-owned enterprises.
• The supplier must comply with the Occupational Health and Safety Act, 1993, and all other applicable South African safety legislation.
• The General Conditions of Contract issued by National Treasury and the ARC supply chain management code of conduct apply.

• RDP Goal: Promotion of South African-Owned Enterprises.

• The successful bidder must provide on-site training to ARC personnel on operation, maintenance, safety procedures and troubleshooting of the biogas reactor system upon successful commissioning.
• All installation activities must comply with the Occupational Health and Safety Act, 1993, and all other applicable South African legislation and safety requirements.

• The successful bidder must submit all operating manuals, maintenance manuals, warranty certificates, assembly drawings and commissioning records upon project completion.
• After-sales support must be provided during the warranty period, including technical assistance, troubleshooting, and repair or replacement of defective components covered under warranty at no additional cost to ARC.
• A warranty letter on company letterhead, signed by an authorised representative, must confirm a minimum 12-month warranty, components covered, and warranty claim procedure. Warranty certificates for all supplied components must be submitted upon delivery and successful commissioning.
• Standard conditions:

• Quotation validity: 60 days.
• Prices in ZAR inclusive of VAT, delivery, insurance, taxes.
• No price adjustments or amendments to delivery particulars.
• Supplier accepts full responsibility for proper execution.
• ARC reserves the right to accept or reject special terms and conditions.
• Quotes must be on official letterhead and duly signed.
• Goods/services supplied upon receipt of an ARC purchase order.
• General Conditions of Contract (National Treasury) and ARC supply chain management code of conduct apply.
• SBD forms must be signed and returned with the quotation; non-compliance leads to disqualification.
• Quotation must indicate delivery date.
• ARC reserves the right to conduct due diligence and benchmark prices.
• Late/incomplete submissions invalidate the quotation.
• Quotations must be market-related; under-quoting may lead to disqualification.

• Delivery and Installation: The successful bidder must deliver, install, test and commission the complete biogas reactor system at the ARC designated site within the agreed lead time.
• Contingency: Up to 15% of the original contract value may be considered for unforeseen work directly related to the original scope. Any use requires detailed written motivation, cost breakdown, justification, and prior written approval per ARC SCM Policy. No additional work may start without approval.
• Defects During Warranty Period: Any defects from faulty workmanship, defective materials or installation must be rectified by the supplier at no additional cost to ARC within a reasonable period after notification.
• Replacement of Defective Components: Any component found defective during delivery, installation or commissioning must be replaced with a new component of equivalent or superior specification at no additional cost to ARC.
• Quality of Materials: All materials, components and equipment supplied must be new, unused, free from defects, and comply with RFQ specifications.

Eligibility will depend on B-BBEE status level, capability to deliver the full scope, and compliance with the Agricultural Research Council's procurement policies. Specific criteria (e.g., CIDB grading, industry experience) are not detailed in the provided excerpt but are typically required for such technical tenders.

• Technical specifications not detailed in this extract; only preference point allocation (80/20, 90/10) appears.
• Tender title indicates scope: Design, fabrication, delivery, installation, testing, commissioning, and training of three (3) complete 1,000 L IBC-based biogas reactor systems.
• Bidders must request full technical specifications, standards, capacity requirements, and service levels from the issuing organization.

• Compliance requirements not extractable from this document fragment; AI extraction recommended.
• Full tender document needed to confirm CSD registration, tax clearance, B-BBEE certificate, CIDB grading (if applicable), CIPC registration, professional registrations, and local content thresholds.