Water pollution load in (River) BOD and COD load (sea or Lake). Each et al, explain why door operations, such as septic tank Palm urine treatment in order to reduce the.
Water pollution load, there is a BOD load (rivers) and COD load (lakes and seas). In order to reduce the Zorera, why such as septic tanks and sewage treatment, what is needed parentheses processing, and explain.
The water pollution load, the load BOD (River) and the load (COD lakes and seas). In order to reduce them, and why such as septic tank sewage and describe the process of each process is required.