Wastewater Treatment

Wastewater treatment is a sequence of treatment processes used to bring wastewater quality into compliance, make discharge safer, or prepare treated effluent for reuse. In industrial applications, a wastewater treatment system must be designed around actual wastewater characteristics, flow variation, target effluent quality, available installation space, and day-to-day operating needs.

PT Beta Pramesti Asia delivers wastewater treatment systems for industrial applications, including physical-chemical treatment, biological treatment, sludge handling, polishing, and reuse integration with advanced filtration or membrane systems. Each system is configured around wastewater parameters such as pH, TSS, COD, BOD, oil and grease, color, nutrients, metals, and the potential for shock loads from production processes.

Wastewater Treatment Applications

Wastewater treatment systems can be used for:

Industrial wastewater treatment before discharge to approved channels or receiving bodies.
Reduction of TSS, COD, BOD, oil and grease, color, and site-specific contaminants.
Domestic and sanitary wastewater treatment for industrial, commercial, or camp facilities.
Effluent polishing after biological treatment to stabilize outlet quality.
Reuse of treated wastewater for utilities, washing, cooling tower make-up, or selected non-critical process duties.
Integration with water treatment plants, RO, ultrafiltration, filter press, DAF, clarifier, and chemical dosing systems.

Common Wastewater Treatment Stages

Wastewater treatment configurations vary by industry, but common stages include:

Screening and equalization tank to remove coarse solids and stabilize flow and wastewater quality.
pH adjustment, coagulation, flocculation, clarifier, or DAF to separate suspended solids, oil, colloids, and part of the organic load.
Biological treatment such as activated sludge, MBBR, SBR, anaerobic systems, or combined aerobic-anaerobic processes.
Secondary clarification to separate biomass from biologically treated water.
Polishing with sand filter, carbon filter, ultrafiltration, disinfection, or RO when reuse quality is required.
Sludge handling using thickening, filter press, screw press, or other dewatering methods.

Design Factors

Before selecting a WWTP configuration, several technical parameters should be evaluated:

Wastewater characteristics: COD, BOD, TSS, pH, oil and grease, color, nutrients, metals, salinity, and hard-to-treat compounds.
Flow variation: average flow, peak flow, batch discharge, and shock load risk from production processes.
Effluent target: environmental discharge limit, reuse requirement, or downstream process specification.
Footprint and layout: land availability, maintenance access, piping route, elevation, and integration with existing facilities.
Chemical program: selection of coagulant, flocculant, pH adjuster, nutrient, antifoam, biocide, or cleaning chemicals.
Operation and monitoring: automation, flow meter, pH meter, DO meter, online sensor, sampling point, and alarm requirements.

Benefits of a Properly Designed WWTP

A properly designed wastewater treatment system helps industrial plants maintain compliance, reduce pollution risk, improve operational stability, and create opportunities for water reuse. Good design also reduces chemical and energy costs by selecting treatment processes that match the wastewater profile instead of adding unnecessary treatment units.

With engineering, fabrication, installation, commissioning, and after-sales experience, Beta Pramesti Asia can support new WWTP projects, existing system upgrades, polishing unit additions, and treated wastewater reuse integration with water treatment systems.

Complete wastewater treatment systems can be combined with:

Dissolved Air Flotation (DAF) for oil, grease, and suspended solids separation.
Clarifier for floc and suspended solids sedimentation.
MBBR or biological wastewater system for biological treatment.
Filter press or screw press for sludge dewatering.
Ultrafiltration and Reverse Osmosis for polishing and treated water reuse.
Water & Waste Water Chemicals for coagulation, flocculation, pH adjustment, and WWTP operation support.