Domestic Wastewater Treatment Plant IPAL Work with BIOCAPS 10 MPD

Location: Riau Islands, Indonesia
Capacity: 10 m³/day (10 MPD)
Scope of Work: Process design, unit fabrication, on-site installation, and commissioning
Result: Effluent complies with local environmental standards (BOD < 30 mg/L, COD < 100 mg/L, TSS < 30 mg/L)

Domestic wastewater treatment is an essential requirement for both industries and residential areas, in line with Indonesia’s Ministry of Environment and Forestry Regulation (Permen LHK) No. 68/2016 on Domestic Wastewater Quality Standards. The regulation sets pollutant concentration limits for wastewater generated from domestic activities (households and businesses) to ensure it is safe for discharge into water bodies.

One proven solution is BIOCAP (Capsulized Sewage Treatment Plant). This system is designed as a compact capsule unit that is efficient, easy to integrate, and capable of producing effluent that is safe for discharge into the environment.

One project implemented by PT Zefa Valindo Jaya was a 10 m³/day BIOCAP STP in the Riau Islands. The system was successfully installed at an industrial facility to treat domestic wastewater, with effluent quality meeting environmental standards (BOD, COD, and TSS well below permissible limits) and safe for discharge into the sea.

What is a Sewage Treatment Plant with the BIOCAP System?

A Sewage Treatment Plant (STP) is a system designed to treat domestic wastewater from various household activities (kitchen wastewater, bathroom wastewater, toilets, floor drains, etc.) into effluent that meets discharge standards.

One of the most common challenges in developing domestic wastewater treatment facilities is land availability. Conventional treatment systems often require excavation and civil construction for multiple tanks, which demands significant land, cost, and time.

BIOCAP (Capsulized Sewage Treatment Plant) offers an effective and efficient alternative, designed as a compact and integrated capsule system that minimizes land requirements and installation complexity.

Key Components of BIOCAP STP

• BIOCAP FRP Tank – A fiberglass (FRP) capsule divided into several compartments for each treatment stage (separation tank, anoxic tank, aerobic tank, sedimentation tank, effluent tank).

• Air Blower – Supplies oxygen to the aeration tank.

• Pumps – Transfer wastewater between compartments, including feed pump, RAS pump, and effluent pump.

• Control Panel – Operates and monitors equipment to ensure optimal system performance.

BIOCAP STP Treatment Stages

1. Separation Process – Homogenizes wastewater parameters such as flow, pH, temperature, and COD. Solid particles, grease, and debris are screened out at this stage.

2. Anoxic Chamber – The first biological stage, where anaerobic bacteria break down organic contaminants in the absence of oxygen. Equipped with honeycomb media for bacterial attachment.

3. Aerobic Chamber – The second biological stage, using aerobic bacteria that require oxygen supply. Biomedia such as bioballs or MBBR are added to enhance bacterial growth, improve resistance to environmental fluctuations, reduce carried-over sludge, and increase biological degradation efficiency.

4. Sedimentation Tank – Allows sludge from previous stages to settle. A portion of the sludge is recycled (RAS) back to the aerobic chamber to maintain bacterial population balance.

5. Effluent & Disinfection – Chlorination is applied to disinfect and eliminate harmful pathogens such as E.coli, ensuring the treated water is safe for discharge.

Why Choose BIOCAP Sewage Treatment Plant?

• Cost Efficiency: Quick installation, minimal civil works, and low operational costs

• Reduced Sludge Generation

• Odor-Free: Closed system prevents foul odor

• Energy-Saving: Uses MGB (Micro Bubble Generator) technology with low energy consumption and small pumps

• Low Footprint: Compact design suitable for limited land availability

• Smart Automation: Control system ensures reliable and optimized operation

• Flexible Application: Suitable for factories, hospitals, residential areas, and remote locations

Routine Maintenance of BIOCAP STP

• BIOCAP Tank

  • Separation: Clean screens regularly, remove grease from grease trap, desludge once or twice a year depending on load.

  • Anoxic: Monthly seeding of bacteria and nutrients.

  • Aerobic: Check air supply daily, measure DO monthly, reseed bacteria and nutrients monthly.

  • Sedimentation: Inspect sludge levels monthly, desludge every 1–2 years.

  • Effluent: Replace chlorine tubes weekly and check effluent quality regularly.

• Air Blower – Check voltage and indicator lights daily, clean air channels every 3–4 months.

• Pumps – Monitor electric current daily, check flow performance every 3–4 months.

• Control Panel – Inspect electrical current daily, check wiring and internal components every 3–4 months.

For inquiries or free consultation about BIOCAP STP, contact us at Tel: +62 21 8873 531, Email: info@zevanya.com, or Request a proposal here: BIOCAP Proposal Form