Africa Water, Sanitation & Hygiene Africa Water, Sanitation Jan -Feb 2014 Vol.10 No1 - Page 15

New Products power supply is not available, the units can be provided with options of either solar power for the light duty capacities or diesel electric generators for higher capacity. Some examples of recent projects include in 2013 the supply of mobile plants to the Rwanda Government for use in UN supported peace keeping operations. These units were specified to treat up to 2m3/hr of raw water per hour and were operated by diesel generators. The units incorporated a fully automatic back flushing mechanism to minimise maintenance and service costs. In 2014 Davis & Shirtliff supplied mobile water treatment units to South Sudan. These combined both Ultrafiltration and Reverse Osmosis and provided the option of treatment by either Ultrafiltration up to a capacity of 5m3/hr for surface water treatment or to by Reverse Osmosis up to a capacity of 2m3/hr for highly mineralized water. With on board diesel generators, these units have allowed production of clean drinking water under the most demanding conditions immediately after arrival on site. Another interesting supply has been 10 smaller portable units rated to produce 600l/hr of clean drinking water for the Athi Water Service Board for use in the counties it is responsible for. Replaceable sediment cartridge and ultrafiltration filters are used which remove turbidity and micro-organisms to produce potable water. Final purification is done using ultra violet disinfection. Compactness and portability of these units ensures that they can be conveniently loaded onto a small vehicle for delivery to site and they are powered by solar PV modules feeding batteries ensuring very low maintenance and operational costs. In addition six containerized units were also delivered to handle larger capacity requirements of up to 4m3/hr and have been supplied to the same customer. Uniquely, the units are designed to run on either diesel generators or battery banks. Installation is made quick and easy through the use of high quality quick connect couplings, flexible hoses and plug and play connections. An added benefit is provision of collapsible water storage tanks that are packed within the containers and can be used to store up to 5,000 litres of treated water. Units are mounted on heavy duty trailers for easy delivery to places of need and they can be quickly set up to purify water from the nearest available water source. As well as emergency uses Davis & Shirtliff mobile plants are also ideal for temporary applications like medical camps, mines, field camps and military operations as they provide a simple, reliable and cost effective solution for the supply of potable water from almost any source. Together with the wide branch network and qualified service technicians the plants are fully supported throughout the EA region and truly reflect the company’s slogan; Water and Energy Solutions for Africa. BioFizz, a biological product formulated to treat septic tanks as well as urban sanitation systems BioFizz is a biological product developed by CSIR Biosciences, intended for use in both septic tank systems, as well as conventional urban lavatories. Septic tank systems are widely used in various parts of South Africa, Sub-Saharan Africa as well as in various BioFizz is a biological sanitation other developing treatment product intended for use in both countries. Most urban septic tank systems, as well as conventional populations in these urban lavatories countries are provided with septic tanks; although in some other less developed countries, up to 45 % still use traditional pit latrines. The septic tank system provides a cost-effective on-site sanitation mechanism, and is the most cost-effective, and likely the only practical approach for securing the health benefits associated with hygienic disposal of excreta. Although its use is advantageous, numerous limitations of the use of septic tank systems have been reported. The BioFizz product can also be applied as a biological alternative in normal domestic water borne sewage systems, where environmentally aware customers can use the product to reduce the burden on sewage treatment facilities and ensure cleaner effluent traps and pipes. Onsite, point-of-source treatments of these septic tanks and urban lavatory systems are required in order to suitably treat sewage generated from households. This form of sanitation is also being adopted by suburban lifestyle estates and game lodges across Africa. A scientifically developed, effervescent product was formulated to release beneficial bacteria into the system upon application. The incorporated bacterial strain has the capability of liquefying solids, and reducing waste ions such as ammonia, nitrites, nitrates, phosphates, chemical and biological oxygen demand. Various product prototypes have been formulated and given to various clients for testing acceptance with their customers. This product makes possible more hygienic ablution facilities, reduces burden on existing treatment facilities and also reduces maintenance costs required to pump out the contents of full tanks (in the case of septic tanks). Source: WASHplus Africa Water, Sanita ѥ