Reissue - appointment of a service provider for the provision of the layout of water SA for 10 ISSUES/24 months

The document discusses factors affecting leak discharge, including construction quality, materials, infrastructure age, operational practices, and maintenance.

No tender-specific dates are stated in the document.

Correspondence contact: Moustafa S Darweesh. Email: [email protected].

No eligibility criteria are specified in the provided document content.

The document is a research paper on leakage in water pipes. It does not contain tender specifications for a service provider.

The document details a research methodology using the Finite Element Method (FEM) to analyse leakage in long radius elbows. Key points include:

• The FEM represents an object as a mesh of elements solved separately and recombined.
• A base model of a 90° elbow with specific dimensions was used.
• A sensitivity analysis varied parameters like pressure, modulus of elasticity, Poisson's ratio, longitudinal stress, hole diameter, elbow diameter, and wall thickness.
• Results show opening area expands linearly with pressure.
• Elbow internal diameter has the greatest effect on pressure-area slope, followed by modulus of elasticity, then wall thickness.
• Leakage exponent for the studied conditions ranges from 0.495 to 0.592.
• Empirical formulas are provided to predict the pressure-area slope.
• Further research based on actual experiments is recommended.

No compliance requirements for a tender are stated in the document.

The document is a research paper on finite element analysis of pipe leaks. It does not contain health and safety requirements for a tender.

The document is a research paper discussing leakage in water distribution systems. It does not contain contractual terms for a tender.

No tender evaluation criteria are stated. The text references factors affecting leak discharge, such as soil type, water quality, specifications, and construction quality.

The study is conducted by the Department of Early Childhood, University College Taraba, Taif University, Saudi Arabia.

The document mentions a closing date of 10 August 2018 and an acceptance date of 12 December 2019.

Contact email: [email protected]. Department: Department of Early Childhood, University College Taraba, Taif University, Saudi Arabia.

Cannot be determined from the provided content. The actual tender document is needed to identify eligibility criteria such as company registration, relevant experience, and technical capabilities.

The scope involves the use of the Fenton process for decolorizing real wastewaters from a cotton dyeing and finishing factory. The study aims to investigate the effectiveness for wastewaters with different complexity and chemical stability behaviours. Key technical aspects include:

• Use of synthetic and real wastewaters for comparison.
• Determination of parameters affecting process efficiency to discover optimum values.
• Evaluation of performance in terms of colour and COD removal, suspended solids, biodegradability, and turbidity.
• Investigation of treated water quality for re-use in dyeing experiments.
• The real wastewater is a mixture of either direct or reactive dyes with related finishing reagents.
• The Fenton process uses hydrogen peroxide and iron sulfate under specific conditions (e.g., pH 3, temperature 40°C, [H2O2]/[FeSO4] ratio of 70).

No specific compliance requirements such as CSD, tax, B-BBEE, CIDB, or CIPC are stated in the document.

The document describes dyeing experimental procedures, including the use of electrolytes and pH adjustments, and methods for monitoring colour removal using spectrophotometry. It does not specify occupational health and safety requirements.

The study focuses on the environmental impact of textile wastewater and the use of the Fenton process for treatment and recycling. Key points:

• Textile wastewater has serious negative impacts on groundwater and aquatic life due to high colour, COD, low biodegradability, fluctuating pH, and high temperature.
• The Fenton process is explored for decolorizing real wastewaters from a cotton dyeing and finishing factory.
• Optimum conditions found: pH 3, temperature 40°C, [H2O2]/[FeSO4] ratio of 70.
• For direct dye, colour and COD removals were 90% and 87% in real wastewater.
• For reactive dye, removals were 83% and 45% due to hydrolysis issues.
• The process allows for wastewater recycling, reducing demand for fresh water and mitigating environmental impact.

The document references standard methods (APHA/AWWA/WPCF, 1975) for evaluation and notes that side reactions can decrease process efficiency or cause destabilization of pH values and formation of iron hydroxyl sludges.

The evaluation will assess the performance of the Fenton process, especially in terms of colour and COD removal, and other pollution parameters such as suspended solids, biodegradability, and turbidity. The resulting water quality will be investigated in dyeing experiments to evaluate its suitability for re-use.

Appointment of a service provider to provide layout for the Water SA scholarly journal for 10 issues over a 24-month period.

• Closing date and time: 31 July 2026 at 11:00.
• No other dates (briefings, site visits, clarification deadlines) are specified in the document.

• For bidding procedure and technical enquiries: Supply Chain Management.
• Email: [email protected].
• Telephone: 012 761 9300.
• Physical address for delivery not specified; submissions are email-only.
• Fraud hotline: 0800 214 777 or [email protected].

• Submit bid by email only to [email protected]. Hand-delivered or submissions to other emails will not be accepted.
• Closing date: 31 July 2026 at 11:00.
• Bid validity period: 90 days.
• Use official forms provided (SBD forms). Do not retype.
• Fully complete, sign, date, and initial every page. Submit bound document without torn pages.
• Required returnables: SBD1 (Invitation to Bid), SBD4 (Declaration of Interest), SBD6.1 (Preference Claim Certificate).
• Failure to submit any requested documents may lead to disqualification.
• Late bids will not be considered.

Not in service of the state; tax compliant; registered on Central Supplier Database (CSD); must achieve minimum 80% score on technical evaluation (proven experience in scholarly journal layout, especially with mathematical content); bids must be complete, signed, and submitted on time via specified email; foreign suppliers must answer tax questionnaire.

Scope: Provision of layout services for the Water SA scholarly journal for 10 issues over 24 months (1 August 2026 to 31 July 2028).

• Layout to be done in Adobe InDesign according to a provided style sample.
• Input: Articles supplied in MS Word, with images embedded or separate.
• Output required per issue: Individual articles in PDF and InDesign format; one consolidated PDF for the full issue.
• Additional deliverables: Table of Contents page per issue; Reviewers page for each January issue.
• Turnaround: Completion within 10 working days of article receipt.
• Quantities: Quote based on 10 issues of 170 pages each; indicate cost for additional pages.
• Content includes complex mathematical equations, chemical formulae, subscripts, superscripts, and italicised text.

• Provide quote for 10 issues, assuming 170 pages per issue. Include cost for additional pages.
• Pricing must be all-inclusive, VAT where applicable.
• Quote must include estimated turnaround time.
• Invoicing per issue upon completion.

• Quote must be in South African Rand, VAT inclusive, and firm for the full 24-month period.
• Pricing must include estimated turnaround time.
• Invoicing will be per issue upon completion of all deliverables for that issue.
• Payment terms: Payment effected 30 days from invoice date.
• No bonds or guarantees are specified.

• Tax Compliance: Submit valid SARS Tax Clearance Certificate and Tax Compliance Status (TCS) PIN. Alternatively, provide Central Supplier Database (CSD) number if no TCS is available.
• Central Supplier Database (CSD): Registration on CSD is mandatory prior to submission. Submit CSD Registration Report.
• B-BBEE: Submit original or certified B-BBEE Status Level Verification Certificate or sworn affidavit (for EMEs and QSEs). Points awarded based on level: Level 1 (10 points) to Level 5 (2 points).
• Company Registration: Submit business registration certificate (e.g., CK1, certificate of incorporation).
• Foreign Suppliers: If foreign-based, answer questionnaire in Part B; may not need SARS PIN if no RSA presence/income/tax liability.
• Persons in service of the state are prohibited from bidding.

• Contract duration: 24 months.
• The successful bidder must sign written contract form SBD7.
• General Conditions of Contract (GCC) and any special conditions apply.
• WRC reserves right to terminate contract for unsatisfactory performance.
• National Treasury General Conditions of Contract apply.
• A service level agreement will be entered into with the successful bidder.