How Much Land Is Required for a 100 KLD Sewage Treatment Plant?

Sewage Treatment Plants are needed to handle wastewater in residential complexes, commercial complexes, and industrial complexes. With urbanization increasing and stricter environmental regulations being implemented, wastewater management is inevitable.

While designing an STP, the first question that strikes the minds of facility managers and developers is: "What will be the area of land required by a 100 KLD STP?" The knowledge about the space requirement ensures effective operation, regulation compliance, and efficient planning design.

A 100 KLD STP that can treat 100,000 litres of wastewater every day is usually sufficient for medium-sized residential apartment buildings, hotels, and small industries. Land required for a 100 KLD STP varies with the technology adopted, planning, and other facilities.

Factors Affecting Land Requirement

There are various factors influencing the overall land requirement:

Treatment Technology

Selection of technology influences space requirements to the maximum extent.

· Conventional Activated Sludge Process (ASP): There are large aeration and settling tanks needed, hence more land used.

· Moving Bed Biofilm Reactor (MBBR): There is less space, as it enhances the efficiency of treatment in smaller tanks.

· Membrane Bioreactor (MBR): There is a combination of biological treatment with filtration, which reduces the tank size and land used.

· Sequencing Batch Reactor (SBR): Medium space required, with reduced tanks but some operational flexibility.

Generally, plants of MBBR and MBR are utilized in the scenario of urban flats where land is limited as they reduce the land that will be taken up for a 100 KLD STP.

Layout and Site Design

Topography and shape of the site decide land demands. It is simpler to design rectangular plots in an effective way, whereas irregular plots can mean additional space. Installation as multi-level or underground can minimize footprint through vertical stacking of treatment units.

Auxiliary Facilities

Sludge treatment tanks, dosing tanks for chemicals, operator shelters, and control panels take up more area. Mechanical dewatering is used regularly in contemporary plants instead of conventional sludge drying beds, which takes up less land.

Regulatory Requirements

Minimum building, water body, and property line clearances can be stipulated by local regulatory bodies to provide safety and reduce odor. Such clearances contribute to the land required for a 100 KLD STP.

Approximate Land Requirements

Though exact sizes vary with the design and requirements of the site, average land requirements for a 100 KLD STP are:

· Traditional ASP: 250–350 m²

· MBBR: 180–250 m²

· MBR: 120–180 m²

· SBR: 200–280 m²

These are for the main treatment tanks, road space in the access roads, and small auxiliary spaces. Consider that sludge handling, control rooms, and future expansion may need additional space.

Optimizing Land Use

Effective design can reduce land area for a 100 KLD STP without sacrificing treatment efficiency:

· Compact Technologies: MBR and MBBR enable the use of smaller tank capacities and compact structures.

· Vertical Stacking: Multiple level tanks or below ground units retain surface area.

· Combined Units: Employing combined systems for sludge treatment and aeration reduces space.

· Automation: Small control spaces and lower operator spaces are kept with automated systems.

These control measures are very effective for urban residential estates where land is scarce and costly.

Importance of Appropriate Planning

Providing sufficient land ensures:

· Unproblematic operation free from tank and equipment overload

· Proper flow and retention time for treatment operation

· Expansion space in the event of future expansion of wastewater load

· Compliance with local safety and environmental standards

Omitting land requirement can result in inefficiency of operation, excessive maintenance, and non-compliance with pollution control standards.

Conclusion

The land required for a 100 KLD STP is technology, design, auxiliary space, and approvals-dependent. While traditional plants may take as much as 350 m², new compact technologies such as MBR and MBBR may save it by almost half.

Effective planning and design guarantee effective wastewater treatment, environment protection, and possible reuse of treated water. For small flats, commercial premises, or small-scale industries, knowing the space needed for a 100 KLD STP is the first step towards sustainable water management.

Do you need an advice or assistance on selecting the best water and waste water treatment unit? We have solutions for all your problems!

Let us know your problem, our experts will make sure that it goes away.

For an assistance or related query,

Call on +91-9650608473 Or write us at enquiry@netsolwater.com