FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za
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FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za

FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za

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10.07.2015 Views

75August 2010 88489 WASTE DISPOSAL SITE DESIGN9.1 Constraints and factors affecting the designTaking into consideration the waste disposal need, the physical conditions of the site, anddiscussions with various ELM project personnel, there are several factors that affect thedesign philosophy adopted. These are as follows:• The Boitshepi Waste Disposal Site and the proposed extension need to comply with theMinimum Requirements for a G:L:B + waste disposal site.• The design of the waste disposal site needs to cater for waste disposal needs until thenew site has been commissioned and is operational – approximately 4 – 5 years.• The northern boundary of the site is defined by a vlei area, whilst the southern boundaryis the only area available around the site for the proposed extension. The existing wastedisposal site defines the northern boundary for the proposed extension. The existing sitepalisade fence and storm water drain define the southern boundary of the site, and this isthe ultimate extent that the site can be extended.• The existing waste body does not have a liner however this portion of the site isunderlain by clay soils. The soils on the site for the proposed extension however are notsuitable for use in the waste disposal site liner construction. The liner design is thereforebased on a geocomposite waste disposal site liner.• The design of extension of the site must be integrated with the closure and capping ofthe existing waste disposal site in terms of liner and drainage.• The design must make provision for the sequential phased development of the wastedisposal site, such that leachate flows from the lowest point of the waste disposal sitecell can discharge into the sewer under gravity.9.2 General site layoutBased on the aforementioned constraints and factors, the overall layout of the BoitshepiWaste Disposal Site has been developed as shown in the Figure 26. The arrangement of thevarious facilities (already existing) is also illustrated in the drawings. The designs providedfor in this section are based on the preferred alternative, that is, alternative 2 with a 50 metrebuffer zone.The entrance to the site would remain in its current position at the north western corner ofthe existing waste disposal site throughout operations. The existing gravel access roadwould continue to be used for waste disposal to the site. The existing site office andweighbridge would also continue to be used for operations.ZITHOLELE CONSULTING

76August 2010 8848Figure 24: Existing site layout.ZITHOLELE CONSULTING

76August 2010 8848Figure 24: Existing site layout.ZITHOLELE CONSULTING

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