Water, Sewage & Effluent November-December 2017 | Page 15

The dairy’s holding area for the cows – for before and after milking – consists of a concrete surface 32m wide and 50m long. This hardstand is divided into enclosures, including a cow handling facility with various ‘crushes’ where cows stand in single file to be either artificially inseminated or treated by the herd veterinarian. There is an additional crush for calves, to consolidate the handling of the herd into one facility. Further provision has been made for neck-clamps, a spray race and a loading ramp for transport purposes. Some 4  000m 3 of bulk excavation, 700m 3 of concrete works, and nearly 800m 2 of brickwork has gone into the civil engineering and building works. Commissioning of the dairy commenced on 20 June 2017, where the new users introduced their cows to the facility and a 28-day trial period of milking was undertaken. During this time, staff were trained in all the facility’s systems and activities. The project was completed at the end of July 2017. u Marinus Meiring – SRK Consulting Cow handling facility with the ponds in the background (under construction). Primary sludge pond prior to commissioning showing vehicle access. contributor “… our ground-breaking innovation allows the dairy to save 30 000 litres of water a day by re-using effluent to clean the external concrete areas around the dairy.” generator capable of powering the dairy for almost 24 hours. “This is vital to keep the facility operational as well as keep milk cool before collection,” he adds. “Various green technologies have been included to ensure that the dairy’s energy needs are met as efficiently as possible.” • • • • • • • • Employer: The Eastern Cape Department of Rural Development and Agrarian Reform Beneficiary: Wittekleibosch Dairy Trust Principal Agent: SRK Consulting Civil / Structural Engineers: SRK Consulting Mechanical, Electrical and Electronic Engineers: CA du Toit Eastern Cape Principal Contractor: SP Excel Mechanical Sub-contractors: Northfield Engineering Waikato South Africa Electrical Sub-contractor: WattsUp Electrical Project Team: Wash water pond with recycling pump station. Water Sewage & Effluent November/December 2017 13