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Activest

Grootvadersbosch Nature Reserve

A2V in joint venture with Flowline carried out an upgrade to the exiting water treatment plant for Cape Nature Conservation. The project included an analysis of the existing system which had fallen out of use and recommendations on its upgrade. The project comprised the following:

  • supply of a duplex zeolite filter system with automated backwash
  • automation of the coagulation and settling system including new dosing equipment and actuated valves for sludge wasting
  • supply and installation of a simplified Calcium hypochlorite dosing system for disinfection.
  • a larger buffer tank for improved filter backwash
The concrete reservoir with an in-line HTH dosing system and the treatment plant behind

The concrete reservoir with an in-line HTH dosing system and the treatment plant behind

The flocculation column, settling tank and buffer tank in a beautiful wilderness

The flocculation column, settling tank and buffer tank in a beautiful wilderness

Amawandle Pelagic

A2V in a joint venture with Conns Water designed and supplied a sea water treatment plant at their facility in Veldrif. The treatment plant designed to treat 40m3/hr includes a coagulation and settling stage followed by filtration and disinfection. The treated water is used in the factory to reduce their dependence on municipal water.

The coagulation system includes a pipe flocculator ahead of two polyethylene tube settlers. The filtration system includes three FRP (fiber reinforced plastic) filter vessels with PVC pipework and customized backwash valves, all compatible with sea water. Disinfection is achieved by controlled dosage of Sodium hypochlorite.

Pipe flocculator and tube settlers

Pipe flocculator and tube settlers

FRP filter with customized Bermad backflush valves and zeolite fine filtration media

FRP filter with customized Bermad backflush valves and zeolite fine filtration media

Polyethylene tube settler with 35mm aperture, UV stablilsed tube modules

Polyethylene tube settler with 35mm aperture, UV stablilsed tube modules

Ceres Fruit Processors

A2V in joint venture with Conns Water and Sopura, designed and installed a water treatment system to remove iron and manganese from borehole water using a catalytic filter media called DMI-65.

The plant is design to treat 40m3/hr fed directly directly from the borehole pumps via the system to a reservoir. Chlorine dioxide, produced by a generator on site, is used as the preferred oxidant and disinfectant to minimize the risk of chlorine byproduct formation. In line pH adjustment is critical for optimum manganese removal.

This was a turnkey project including civil and building works.

Chlorine dioxide dosed into a mixing pipe prior to filtration by DMI-65

Chlorine dioxide dosed into a mixing pipe prior to filtration by DMI-65

DMI-65 filters

DMI-65 filters

Quality Beverages

A2V recently completed two projects for Quality Beverages, Epping Industria:

  • An effluent pre-treatment plant to increase the pH of their effluent to within bylaw requirements.
  • A chlorine dosing system to disinfect the City’s water supply to the highest standards required by Quality Beverages.

The effluent plant included the construction of a new sump over the exiting sewer line while the line remained in service. A pH dosing system was installed into the sump that rectifies the pH as the effluent flows out the the sewer system.

Effluent Treatment Plant Layout

Effluent Treatment Plant Layout

NGK Ceramics

A2V recently completed the air extraction and treatment system to NGK’s newest manufacturing line at their facility in Airport Industria, Cape Town. As per previous projects, the system extracts air contaminated with xylene and other benzine type organic contaminants and treats it through a particulate filter to remove ash, followed by activated carbon filter to remove the organic vapors, before discharging the treated air to atmosphere.

The project also included AC supply to maintain the air temperature in the process at optimal levels as well as the fresh air supply to the operator workstations on the line.

This is the third system that A2V have installed as a turnkey project for NGK and continue to service.

The extraction system from the new BMW productions line, NGK Ceramics

The extraction system from the new BMW productions line, NGK Ceramics

The activated carbon filter and stack at NGK Ceramics

The activated carbon filter and stack at NGK Ceramics