DEVELOPMENT OF THE NEW SOUTH AFRICAN SLUDGE GUIDELINES WORKSHOPS
(Permissible Utilisation and Disposal of Sewage Sludge, Edition 2)
Background
The current guidelines for land disposal and
agricultural reuse of wastewater sludge were published as the Permissible Utilisation
and Disposal of Sewage Sludge, (Edition 1) of 1997 [PDF - 1MB]. These Guidelines deal with the application of sewage sludge
to land and amongst other criteria, set permissible limits for
concentrations of heavy metals in sludge that are acceptable for
unrestricted (limited to 8 ton/ha/year application) agricultural land use.
As the 1997 Guidelines provided for only a few
application alternatives and difficulty was, furthermore, encountered with
interpreting the values set for heavy metals, an Addendum [PDF - 460KB] (Addendum no 1 to Edition 1, of the 1997 Permissible
Utilisation and Disposal of Sewage Sludge) to the guidelines was prepared
to rectify these shortcomings. This Addendum links the handling and
disposal of sewage sludge to several other legislative documents and was
developed as an interim document to assist in the responsible handling of
sewage sludge.
Shortly after initiating the development of the
Addendum, the Water Research Commission started with a research programme
to further develop the knowledge base for the management of sewage sludge
within the South African context. Although the results of these research
projects do not provide all the answers, it is believed that they do
enable the formulation of an update to the 1997 version of Permissible
Utilisation and Disposal of Sewage Sludge. It is envisaged that this
second edition of the Guidelines will combine relevant aspects of the
addendum and limits for metals, nutrients and organic pollutants based on
scientific criteria to ensure credibility and user acceptance. The
development of the second edition of the South African Sludge Guidelines
is taking place in a phased approach that requires input from stakeholders
such as the sludge producers, users and regulators. The Water Research
Commission has appointed ERWAT to revise and update the South African
Sludge Guidelines. WISA Anaerobic and Sludge Processes Division will be
hosting a series of workshops in association with the WRC and DWAF.
It is crucial that stakeholders give their input into
the development of this document. Your participation in this workshop will
be appreciated and will significantly contribute to a better product that
is acceptable to all stakeholders.
Dates and Venues
| Date |
Province / Region |
City |
| 15 November 2004 |
KwaZulu-Natal |
Pietermarizburg |
| 16 November 2004 |
Limpopo |
Polokwane |
| 29 November 2004 |
Free State and Northern Cape |
Kimberley |
| 30 November 2004 |
Western Cape |
Elsenburg (Stellenbosch) |
| 8 December 2004 |
Gauteng |
CSIR |
| 26 January 2005 |
Eastern Cape |
East London |
| 27 January 2005 |
Mpumalanga |
Nelspruit |
| 3 February 2005 |
North West
(Crocodile Marico Water Management Area) |
NECSA |
Workshop Cost and Registration
No registration fees apply. The Water Research
Commission and the Department of Water Affairs and Forestry have sponsored
these workshops. Please note that no provisions have been made to
compensate delegates financially for attending the workshop. We do require
registration to ensure that we have adequately catered for you and have a
document pack ready when you arrive. Please register by sending
(preferably via e-mail) the following details to Mrs Judith Forster at jforster@golder.co.za or Fax:
011-3150317 (Mark for attention Judith Forster): Title, Initials and
Surname, Company, Position, Contact details (Address, e-mail, telephone,
fax).
Programme
Facilitator: Dr Heidi Snyman: Golder Associates Africa
| Time |
Topic or activity |
| 09h30 - 10h00 |
Registration and tea/coffee |
| 10h00 - 10h10 |
Welcome by DWAF and/or WRC |
| 10h10 - 10h30 |
History of wastewater sludge
legislation and guidelines in South Africa |
| 10h30 - 11h00 |
International trends in wastewater
sludge guidelines and legislation |
| 11h00 - 12h30 |
Framework and basis of the new South
African Wastewater Sludge Guidelines with emphasis on the proposed
metal and other limits |
| 12h30 - 13h15 |
Lunch |
| 13h15 - 14h00 |
Discussion and feedback |
| 14h00 - 15h00 |
Practical examples and case studies |
| 15h00 - 15h15 |
Summary and closing |
Related documents
- Progress report: Permissible utilisation and disposal
of sewage sludge, Ed 2
More information
Mrs Judith Forster
Golder Associates Africa (Pty)Ltd.
Tel: (+27)(0)11 254 4800
Fax: (+27)(0)11 315 0317
E-mail: jforster@golder.co.za
Hosted by
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WISA Anaerobic and Sludge Processes Division |
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in association with |
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Department of Water Affairs and Forestry |
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and |
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Water Research Commission |
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