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Piggery Upgrade of Thozama Agricultural Primary Cooperative Limited in Paradys

CaseViews

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Status: 

HeritageAuthority(s): 

Development Type: 

ProposalDescription: 

The Department of Rural Development and Land is proposing to Develop a pig farm for Thozama Agricultural Primary Cooperative Limited in Paradys Village, Thaba Nchu. The site identified for the proposed project is located in Paradys Village which is located approximately 13 kilometres North East of Thaba Nchu. Thaba Nchu, is a town situated approximately 60km east of Bloemfontein and falls within the jurisdiction of the Mangaung Metro Municipality.

Expanded_Motivation: 

The proposed development is situated about 200m from the village. The proposed development entails a 60-sow production unit with 6 boars. This development will be constructed in three phases. The first phase will entail the construction of one 20-sow production unit, as well as the waste management system. Phase 2 and 3 will each include an additional 20-sow unit, thus adding up to a 60-sow production unit (See Appendix F for Structures plan). The pigs will be rendered at the facility and sold as meat. In full production state, this piggery will house an approximate total of • 60 production sows; • 6 production boars; • 600 weaners (porkers). The proposed development will entail and comprise of various sections and structures as listed below: • Weaner Section where piglets that have been weaned are kept until they reach the age of 10 –15 weeks; • Farrowing Section - Sows nearing the delivery date are transferred to the farrowing house. The sows must be washed for hygiene purposes and the section is designed to maintain the right temperature to ensure that the sow and piglets are warm; • Dry sow section where dry sows, boars and just served sows are housed. This section has divisions for sows and boars with individual stalls; • Mating Section where sows that have been confirmed pregnant (24 days after copulation) are placed; • Drainage channel and • 2 Lagoon effluent Dam system. The proposed developed will be sourced with electricity from the existing power line that runs over the property. Current water supply arrangements for the piggery comprise a borehole, which supplies water to two 5000 litres capacity JoJo tanks. According to the Agricultural Research Council’s manual on housing for pigs the lactating sow requires about 18 to 23 litres of water per day and 1 litre per day for the piglets. Water supply for the proposed new development will be delivered from the 2 existing JoJo storage tanks using a 25mmø pipe. Drinking water from the structures will be supplied through drinking nipples placed at a height of 500mm -750mm above the ground. Precautionary measures will also be implemented where possible, to place the nipples above the troughs to ensure that water spills only to the troughs. Peak demand requirements of the facility are based on the assumption that all drinking and flushing water taps are open and used simultaneously. The simultaneous operation will thus have a significant impact on the rate of discharge. The waste from the piggery can be considered as liquid manure. It is estimated that a pig, which weighs 60 kg, will produce on average 4.3 kg undiluted manure per day. However, it is difficult to determine the net value of the waste that pigs produce. The piggery will consist of 2 dual pond systems. In this case a 3 x 20-sow unit in Paradys produces about 94.5 tons of undiluted waste per year. Waste from the piggery will be disposed through flushing of the piggery, which is anticipated to occur twice a day, and totals to 5m3 of water per flush. This comprises of washing down the piggery and allowing the water to flow into the drainage channel, which is closed at the time. The channel sluice is then opened and the water is allowed to flow out into the open channels leading to the pond/lagoon. The pond then anaerobically treats the waste. The pond levels be maintained after the initial filling period, whereby the liquid can be diluted and irrigated into demarcated unused land, or removed to the local Waste Water Treatment Works. After a period of around 5-10 years the pond will have to be de-sludged to free-up the initial volume, and the process can continue as normal. De-sludging entails the mechanical removal of manure (leaving around 300mm behind as to not damage the liner), which is then temporarily stockpiled to dry. It is then sold as fertilizer to local farmers, or removed to a registered landfill site for disposal. The dual pond system is common practice as the first is used for the solids and second for purely separated liquid to improve evaporation. The secondary pond only takes overflowed liquid from the primary pond. A baffle will be installed on the overflow to prevent surface scum entering the secondary pond. The water in the secondary pond cannot be used for much, as it contains high concentrations of nutrients and is not suitable for direct irrigation of crops. It can however be diluted and irrigated into demarcated open grassland to maintain the pond freeboard level. This area will be demarcated for purely pond draw-down purposes and no other development or operations. The dual pond is usually 70/30 split with the solids pond being larger to account for build-up of sludge.

ApplicationDate: 

Thursday, September 12, 2019 - 09:44

CaseID: 

14319

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