40 Advisory services in relation to the treatment of air, water, soil, sand and other materials; air freshening services; air purification services; decontamination services; destruction of waste and trash; incineration of waste and trash; oil processing; production of energy; recycling of waste and trash; sorting of waste and recyclable material; the provision of potable water; the provision of information in relation to the treatment of air, water, soil, sand and other materials; treatment of materials; waste treatment; waterproofing and fireproofing of textiles; water recycling; water treatment services