WCST (Water Cleaning Systems Technology, limited) is a company specialising in the distribution, installation and maintenance of biological wastewater treatment plants (BWWTPs) based on advanced patented technology (Patent No. 5386). BWWTPs are used to treat wastewater from private homes, small communities, schools, hotels, and so on.Well-designed and appropriately chosen BWWTPs are a long-term investment that meets the needs and expectations of future residents, and prevents the creation of unsanitary conditions and the contamination of groundwater, surface water and the environment.The company’s philosophy is to launch a wastewater treatment plant onto the European and international market that meets the highest standards in terms of the quality of the wastewater treated and materials, the aesthetic quality of the construction, and last, but by no means least, the supply of technical services.Wastewater treatment systems currently on the market differ in technology, efficiency of treatment, size and form of the plants, and maintenance and assembly costs.We would recommend care be taken when making a choice, and consideration be given not only to the aforementioned qualities but also to the documentation and certification the company provides.