Environmental control apparatus, namely, particle activators for use in soil remediation, drinking water treatment, municipal and industrial wastewater treatment; Septic tanks; Sewage disposal plants; Sewage purification apparatus; Sewage purification installations; Sewage treatment plants; Sustainable onsite water recycling and wastewater treatment systems; Thickening and dewatering machines for use in treatment of liquids including water, industrial effluent and sewage; Waste water purification units; Water conditioning units; Water coolers; Water cooling towers; Water desalination plants; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; Water purification and filtration apparatus; Water purification machines; Water purification tanks; Water purification units; Water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water; Water purifiers; Water purifying apparatus; Water treatment apparatus, namely, clarification and thickening machines for use in treatment of liquids in the nature of water, waste water and industrial water; Water treatment equipment, namely, ultraviolet sterilization units