ROOT ZONE

sewage and industrial effluent treatment plants; waste water purification units; filters; and parts and fittings therefor

industrial research and surveying relating to effluents, industrial effluent sludge treatment, leachates, water treatment, water supply or water distribution, sewage sludge treatment, sewage treatment or sewage disposal; industrial design and development services in the field of water and sewage treatment, sewage sludge treatment, effluent treatment, treatment of leachates, industrial effluent sludge treatment, or water main or sewerage renovation; consultation services in the field of effluent treatment, the treatment of leachates, water treatment or supply, sewage sludge treatment, sewage treatment or disposal, industrial effluent sludge treatment, and sewage