Sep 01 2009
Mobile water treatment plant
MOBILE WATER TREATMENT PLANT
We have pleasure in submitting specifications for the Mobile water treatment plant capable of handling raw river or dam water and producing potable water to SABS or WHO standards within the limits of the TDS of the raw water.
We trust that our specifications are clear and concise and in virtually all respects, we will
be able to offer a plant in accordance with your technical requirements.
This plant would be capable of operation as a unit on its own requiring no input power supply, as it would make use of a electric generator that’s supplied as part of the unit. The production rate of this plant will be 3M3/H.
The plant, includes raw water filters, water pump and control system, a pre-treatment stage consisting of dosing and mixing stations for ozone, a flocculation time stage, filters and chlorination if required..
In order to design the system to cater for specific waters a Water Analysis is vital to determine dosage levels and treatment systems.
This is a direct floc filtration system and the complete plant would be mounted in a heavy duty 2-wheeled trailer capable of being pulled by a Land Rover or similar vehicle to remote areas.
The treatment plant is custom built on to the trailer capable of producing an average of 3M3/h of clean drinking water from reasonable raw water sources. Obviously as the raw water source becomes heavily laden with silt in flood times, then a lower production should be expected but up to 4M3/h could be produced from relatively clean water.
PROCESS DESCRIPTION
The unit is supplied with a generator, capable of providing the necessary power to drive the pumps and lighting both in and outside the trailer. The generator is permanently mounted in the trailer and would feed directly into a modern switchboard manufactured from non-metals to provide protection even in damp conditions.
A submersible raw water pump is provided, suitably stored in the trailer, which can removed and placed with a float in the river, or dam from which the water is to be drawn. A flexible cable is supplied to feed this pump and 20m of hose have been provided to enable the pump to be taken way from the trailer to the water source. The hoses are connected with standard quick couplings to the trailer and the plant started from the switch board in the trailer.
The raw water on its way to the filters is dosed with a chemical flocculant which enables the water to become filterable in the upper layer of the Dual Media filter. The final layer of the filter polishes the water to drinking water quality and this water is then discharged to a clean water storage tank (provided by the client) alongside the unit.
The clean water is connected to the system so that when a tanker or other offtake method is required, water can be pumped from the low level clean water storage to a tanker at a rate of 10m3/h. This same pump and piping system is used to backwash the filters.
The enclosed trailer has ribbed and panelled sides and special reinforcing to mount the equipment required inside. The trailer is be supplied with 16” wheels and an override brake. Whilst the trailer is suitable for unsurfaced roads, it is not designed for high impact military specifications.
Client requirements each unit
• External reticulation pipe work
• Raw water tanks
• Clean water tanks
• Transport costs.
• Air fares, accommodation and transport on site.
• Any cross border duties, fees and taxes.
• Anything not included in the proposal above.