The waste management study is the study concerned with planning for waste management, collection and transport, transshipment, treatment, recovery to incineration and final safe disposal.
The study of biological purification is the study which prescribes the phases for the process, collection, treatment of wastewater either naturally, or with the help of chemical additives.
An environmental impact study is the study in which measures are assessed and calculated to deal with the environmental impacts during the operation and construction of public and private projects in the environment.
The wastewater disposal study specifies the transportation and disposal of wastewater after its treatment, from the installation units to the storage sites.