A 50 KLD Sewage Treatment Plant (STP) is a facility designed to treat 50,000 liters of sewage per day. STP is typically used for smaller communities, residential complexes, or industrial facilities that generate sewage in the specified capacity range.
The sewage treatment process in a 50 KLD Sewage Treatment Plant
Incoming sewage undergoes screening to remove large objects and grit removal to protect downstream equipment from damage.
The screened sewage is allowing to settle in large sedimentation tanks, where heavier solids settle at the bottom as sludge and lighter materials like oils and greases float to the top. The sludge is then removing for further treatment.
The primary treated sewage is subjecting to biological processes, such as the activated sludge process or other methods like trickling filters or rotating biological contactors. These processes use microorganisms to consume organic matter and pollutants.
Depending on the discharge requirements, the secondary treated sewage may undergo additional polishing in the tertiary treatment stage. This phase may include sand filtration, chemical precipitation, or advanced oxidation processes.
After the tertiary treatment, the effluent is disinfecting using chlorine, ultraviolet (UV) light, or ozone to kill any remaining pathogens
The sludge generated during the primary and secondary treatment processes undergoes further treatment, which may include anaerobic digestion, dewatering, and other methods to reduce volume and stabilize the sludge.
Effluent Discharge or Reuse
The treated wastewater (effluent) is discharging into the environment or reused for non-potable purposes like irrigation or industrial processes, depending on the quality of the effluent and local regulations.
The specific design and technologies used in a 50 KLD STP can vary based on factors such as the characteristics of the sewage, environmental regulations, available space, and budget constraints. The goal of any STP is to ensure effective treatment to meet environmental standards and protect public health while minimizing the impact of sewage on natural water bodies.