Apparatus and installations for decomposing toxic substances in water; Apparatus for disinfecting water; Aquarium lights; Biological contactor for treatment of sewage and drainage water; Bioreactor for use in the treatment of wastewater; Chlorinating units for water treatment; Electrolytic water generators for electrically decomposing tap water to generate electrolytic water and for removing chlorine odor from tap water; Electrostatic water treatment apparatus; Environmental control apparatus, namely, particle activators for use in soil remediation, drinking water treatment, municipal and industrial wastewater treatment; External ballast and bilge water filtering and absorbing device for use in a local containment area for removing aquatic nonindigenous species, oil and other contaminants from the effluent; Filters, heaters and pumps sold in combination for use in swimming pools; Hot tubs; Industrial-water purifying apparatus; Machine that generates purified water from the atmosphere and simultaneously purifies the air; Marine sewage holding tank vent filters