Emergency Water Treatment Units:

Shala 12000 and Abyata 8000

A Brief Note By The Company:

Emergency Water Treatment Units and the Conventional Vertically Fixed Water Potabilizing Plant:

With our range of the Emergency Water Treatment Units: EmWat Abyata 8000, EmWat Shala 12000, and the non-emergency but conventional Vertically Fixed Water Potabilizing Plants for small towns (which are quoted and submitted by us only under surveying of site and under specific Client request), Rift Valley Water Technology plc means to give a solution to the several different requirements of potabilizing water in those areas where such treatmentis most needed. A number of small communities or villages located far from large urban center do not have the benefit of drinkable water even if a river or a lake is nearby. Our emergency or conventional units, allows such populations to enjoy the advantages which, until today, have been limited to urban dwellers only . The EmWat units are sturdy and easily operable to such a degree that they can be even parachuted where they are needed and quickly assembled to be in working condition, so that upon the starting-up of the motor pump in donation,drinking quality water will be produced. The EmWat Units and conventional vertical potabilizers, have the capacity of potabilizing brackish water from lakes, rivers, channels and wells, naturally polluted by biological impurities, residual organic matter and turbidity in general.

Both the Emergency and Conventional Filters:

  •  Delivers good quality drinkable water;
  •  Require very little space for positioning;
  •  Contains all the necessary equipments and tools inside the package to proceed for a fast and easy installation and immediate use;
  •  When installed are extremely compact;
  •  Do not require on-site construction works;
  •  Call for easy starting assembling for initial operation and easy maintenance;

These EmWat Units are inside conventional wooden boxes, tow able or fix mounting. The raw water, drawn by a diesel motor-driven pump is chlorinated and directed to a multi media filter that naturally turn the raw water from a river, lake or channel water into the precious, pure, potabilized water for human consumption. The causes lie not only in shortage of water due to earthquakes, contamination of aquifers and watercourses, but especially due to lengthy droughts, in short, many kinds of environmental disaster, whether natural or man-made. We are all familiar with the consequences: serious disruption of people’s lives, industry and agriculture, and the use of tankers to supply water, which is not only inadequate and unreliable but also hygienically unsound and very expensive. The very nature of the Em Wat Units and the vertical potabilizer’s plant means that it is not possible to know the quality of the water to be treated in advance: it may be from rivers or lakes, reservoirs, wells or tanks. The unit therefore, has to be extremely versatile and designed on the basis of the scenario in terms of the physical and chemical characteristics of the water: those of water taken from surface watercourse (rivers, streams or lakes). Another very important characteristic is capability for rapid mobilization,when a population or village is hit by water supply emergency, lengthy times for installation, connecting and setting-up a system are absolutely unacceptable, and the unit must be operational extremely quickly, because thirst and health allow no delay. Moreover, units of this kind are not always installed in easily accessible areas with a mains electricity supply, this means they must be easily transportable, tow able by a 4WD vehicle, even on rough inaccessible terrain and must be completely self contained. Diesel driven motor pump is set and the Em Wat Unit can immediately be operational without the supply of electricity. The list of requirements is completed by user friendliness and safety; highly skilled staff is not always available for day-today operation of the system.

Rift Valley Water Technology plc
Santilli Silvano
General Manager


Product Set Up and Use

The “Emergency Water Treatment Unit “ is designed to produce potable water of excellent quality in emergency situations and even in small communities or villages. Such communities are located far from urban centers and therefore have semi-conventional supplies and are are not privileged to have the benefit of drinkable water, even if a river or any other surface water are obtainable. Its purpose is to provide a solution to the several different requirements of potable water, in areas where source water is contaminated or polluted. The versatility of the units is definitely one of the most important features. It is an absolutely manageable package with all necessary attachments and tools, facilitated for ease of rapid mobilization. In communities that are drastically hit by a natural or man-made disaster, and emergency water supply is a prerequisite, it is notable that lengthy installation periods for a water supply system are unacceptable. RVWT is confident and ready to implement its vision in bringing technical solutions to the genuine problem of water and sanitation, by locally manufacturing at Bishoftuu (Debre Zeit) Oromia, and making required tools available. Therefore, now, RVWT is in a position to provide a practical answer to such requirements, by providing Emergency Water Treatment Units. Users are
advised to take time to consult this manual for proper installation, use and maintenance of the units.

The Unit:

  • Has a well-built frame that keeps the unit firm and stable, ready to be loaded in a 4WD vehicle and transported in any rough or inaccessible terrain.
  • Requires little time and space for installation.
  • Consists of two octagonal Water Pools, one of which is used for the Flocculation and Decantation and the second used for the Chlorination of clear water. Each Water Pool has the capacity of 10,000 liters for the ”Abyata”model and 15,000 liters (approximately) for the ”Shala” model.
  • Furthermore, it is easy to carry the attachments by hand due to the unique feature, whereby it can be folded and packed as required.

Rift Valley Water Technology plc


Eco1River Small Community Filter

The eco-friendly Eco1River Filter can potentially delivery 150-180 Liters of clear, drinkable, bacteriologically disinfected water, per day and is intended for small communities and households of 100 to 150 individuals. The objectives of
the Eco1River Filter are to manufacture and distribute a compact filter that can deliver all the necessities to those who live in extremely water scarce and remote areas where bottled water is very costly, and to eliminate redundant requirements like additional maintenance and replacement of parts such as cartridges. An entire cycle will yield 20-25 Liters of clean water in one hours time. Assuming a minimum of 8 hours of operation, Eco1River delivers about 200 Liters, an amount sufficient for 100 individuals (considering a consumption of 2 Liters per individual per day). It has several key characteristics that allow for its use in small villages. Primarily, it is entirely manually operated and does not require any electrical supply or a motor driven pump, making it economic for the user and ideal for small villages that are otherwise unable to easily obtain such benets like electricity and diesel. It occupies little ground space of 50 sq/cm (height: 1610mm, diameter: 250 mm) and weighs 25 kg without water. Filtering cartridge (Rift Valley Water Technology plc patent) contains graduated media and active carbon. The filtering process is carried out by gravity, users have the option of increasing the speed of the filtering process with the use of an manual air-pump which Rift Valley Water Technology plc provides. The air-pump is also important for the maintenance of the Eco1River Filter, in that it is needed for backwashing. Maintenance is kept low and necessary processes like backwashing only need to occur once every three to four cycles. It is guaranteed to operate for 3 years and spare parts are always available in our store. All the equipment necessary for the functioning of the Eco1River Filter are provided by Rift Valley Water Technology plc. The Eco1River Operation Manual includes concise step by step instructions for the operation and maintenance of the Eco1River, as well as a list of all the equipment of the Eco1River Filter.  Furthermore, Rift Valley Water Technology plc also provides training services if so desired by the client. The general technique of the filter is as follows: a jerry can is filled with raw water and precalculated amounts (specied in the Operation Manual) of Aluminium Sulphate and Sodium Hypochlorite are added. After the chemical processes are finished, the water is slowly inserted inside the Eco1River Filter. The filtering process last approximately one hours time, after which potable,  quality water will come out of the Eco1River Filter.

Accessories included with the Eco1River:

  •  One Funnel;
  •  One Jug;
  •  Manual Air Pump;
  •  Chemicals products for approx. two months running conditions according to water turbidity density:
     One Liter Sodium Hypochlorite;
     Five Kg Aluminum Sulphate;
  •  One graduate transparent tube for Sodium Hypochlorite dosage;
  •  One graduate transparent tube for Aluminum Sulphate dosage;
  •  Instruction booklet;


The Emergency Water Treatment Filter Unit: Shala 12000 and Abyata 8000


The difference in turbidity from the raw water and clean water


Potable water from the Filter Unit collecting into the Clear Water Pool


Comparison between the raw water in the Flocculation Water Pool and the clean treated water in the Clear Water Pool


Eco1 River Filter Models


Clean water coming out of the Eco1 River Filter