.webp)
Packaged & Modular Wastewater Treatment Systems
Integrated Wastewater Treatment Solutions for Decentralized, Domestic and Industrial Applications
Wastewater Treatment Solutions & Systems
Browse our complete wastewater treatment lineup below, organized by series to match your project: Scavenger for household sewage treatment plants serving villas and single homes; Johkasou-SA / Johkasou-SB for buried small-capacity units and large-capacity integrated sewage treatment plants; JM Series for containerized MBR/MBBR domestic plants, MABR systems, industrial wastewater treatment plants, and seawater desalination systems; and Package Pumping Station for reliable wastewater collection and transfer. Each product page includes full technical specifications and OEM customization options — or contact our team directly for a tailored solution design and wholesale quotation.
Household Sewage Treatment Plants
Compact sewage treatment systems designed for residential and decentralized applications. These systems can treat domestic wastewater generated by houses, villas, guesthouses and other small facilities where a centralized sewer network may not be available.
Typical applications:
Houses and villas
Guesthouses and homestays
Rural residences
Small communities
Remote residential facilities
Small Capacity Johkasou Sewage Treatment Plants
Small-capacity buried Johkasou systems provide a compact solution for decentralized domestic sewage treatment. Their buried installation concept helps reduce the visual impact of treatment equipment while making efficient use of limited site space.
Typical applications:
Rural areas
Villas
Homestays
Scenic areas
Small commercial facilities
Decentralized residential developments
Large Capacity Integrated Sewage Treatment Plants
For larger decentralized projects, integrated sewage treatment plants provide a more scalable solution for communities and facilities with higher wastewater flows. System configuration can be adapted to project capacity, site conditions and required treatment performance.
Typical applications:
Residential communities
Schools
Resorts and hotels
Public facilities
Highway service areas
Rural communities
Commercial facilities
Containerized Domestic Wastewater Treatment Plants
Containerized wastewater treatment plants integrate major treatment equipment into a compact modular structure for faster deployment and simplified installation. They are suitable for projects requiring flexible capacity, limited construction work or rapid commissioning. Depending on project requirements, containerized domestic wastewater systems can incorporate biological treatment technologies such as MBR or MBBR.
Typical applications:
Towns and villages
Scenic areas
Temporary facilities
Remote communities
Residential developments
Commercial facilities
Containerized MABR Wastewater Treatment Systems
MABR-based wastewater treatment systems combine membrane aeration with biological treatment in a compact configuration. Containerized integration allows the treatment system to be prefabricated and deployed where space, construction time or installation flexibility is important. MABR technology can be considered for wastewater treatment projects that require compact equipment, efficient biological treatment and modular deployment.
Typical applications:
Decentralized wastewater treatment
Remote communities
Rural wastewater projects
Commercial developments
Upgrade and expansion projects
Containerized Industrial Wastewater Treatment Plants
Industrial wastewater requires a treatment configuration based on the specific characteristics of the effluent. Mejec provides containerized industrial wastewater treatment systems for projects that require integrated equipment, flexible deployment and treatment processes tailored to industrial wastewater conditions. Solutions can be configured for applications including electroplating, mining, metal processing and other industrial operations.
Typical applications:
Electroplating
Mining
Metal processing
Manufacturing facilities
Industrial parks
Remote industrial sites
Containerized Seawater Desalination Systems
For sites where freshwater is limited or unavailable, Mejec also provides containerized seawater desalination systems based on reverse osmosis technology. Containerized integration enables a complete desalination system to be delivered in a compact and deployable format.
Typical applications:
Remote communities
Coastal facilities
Industrial water supply
Island projects
Water-scarce regions
Emergency and temporary water supply
Package Pumping Stations
Wastewater treatment projects often require reliable wastewater collection and transfer before treatment. Mejec package pumping stations integrate pumping equipment and associated components into a prefabricated system for efficient sewage collection and transfer.
Typical applications:
Residential communities
Municipal wastewater networks
Rural sewage collection
Low-lying areas
Remote wastewater facilities
Not sure which treatment system fits your project? Tell us your wastewater source, daily flow and discharge requirement — we will recommend a suitable configuration and quotation within 24 hours.
Get a Sizing Recommendation
Download Catalog
What Is a Packaged Wastewater Treatment System?
A packaged wastewater treatment system is an integrated treatment solution in which major treatment components are assembled into a compact, modular or prefabricated configuration. Compared with conventional site-built treatment facilities, packaged systems can simplify transportation, installation and commissioning while reducing the amount of on-site construction required.
Depending on the application, a packaged wastewater treatment plant may be installed above ground, underground or inside a containerized structure.
Packaged wastewater treatment systems are particularly useful for projects where:
✓ Construction space is limited
✓ Rapid deployment is required
✓ Treatment capacity may need to expand
✓ The project is located in a remote area
✓ Conventional civil construction is difficult
✓ A modular treatment solution is preferred
Wastewater Treatment Technologies
The appropriate treatment technology depends on wastewater composition, required treatment performance, capacity and project conditions. Mejec's wastewater treatment portfolio incorporates different treatment approaches for domestic, decentralized and industrial applications.
CASS
CASS-based biological treatment can be used for domestic sewage treatment where reliable biological removal of organic pollutants and suspended solids is required.
MBR
Membrane bioreactor technology combines biological treatment with membrane separation to produce high-quality treated water in a relatively compact footprint. MBR systems can be suitable for applications where space is limited or higher effluent quality is required.
MBBR
Moving bed biofilm reactor technology uses suspended carriers to provide a surface for microbial growth. MBBR can provide flexible biological treatment and can be incorporated into modular wastewater treatment configurations.
MABR
Membrane aerated biofilm reactor technology uses gas-permeable membranes to support biological treatment. MABR is particularly relevant to compact and modular wastewater treatment systems where energy efficiency and efficient use of space are important considerations.
Johkasou
Johkasou systems are decentralized sewage treatment units designed to provide on-site treatment close to the wastewater source. They are particularly suitable for residential and small-scale facilities where centralized sewer infrastructure is unavailable.
Why Choose Mejec Wastewater Treatment Systems?
-
Integrated System Design
Mejec develops integrated wastewater treatment equipment designed to combine major treatment components into a compact and coordinated system. -
Modular & Packaged Configuration
Modular and packaged systems can simplify project deployment and provide greater flexibility for different site conditions. -
Multiple Treatment Technologies
Our wastewater treatment portfolio covers different biological and membrane-based technologies for domestic, decentralized and industrial applications. -
Flexible Installation
Depending on project requirements, systems can be configured for buried, above-ground or containerized installation. -
Application-Oriented Solutions
Instead of applying the same equipment to every project, system configuration can be selected according to wastewater source, treatment capacity, site conditions and required treatment performance. -
Project Support
From equipment selection and system configuration to manufacturing and delivery, Mejec supports customers in developing wastewater treatment solutions suited to specific project requirements.
Wholesale, OEM & Distributor Partnerships
Mejec partners with distributors, EPC contractors, engineering companies, and project developers worldwide to deliver reliable decentralized wastewater treatment to new markets. As the original manufacturer, we offer factory-direct pricing, flexible MOQs, and full OEM/ODM customization — including private labeling, custom capacity and process design (MBR / MBBR / MABR), stainless steel or FRP tank options, and control systems configured to your local discharge standards.
Our production facility supports everything from single-unit pilot projects to multi-container plant deliveries (20'GP / 40'HQ / flat rack), backed by [CE / ISO 9001 / ISO 14001 / SGS] and a dedicated export team handling documentation, logistics, installation guidance, and after-sales support.
Tell us your target market, daily treatment capacity, and influent/effluent requirements, and we'll provide a detailed wholesale quotation.
Frequently Asked Questions
What is a packaged wastewater treatment plant?
A packaged wastewater treatment plant is a compact, integrated treatment system in which major treatment equipment is assembled into a modular or prefabricated configuration. It is designed to simplify installation and provide a more flexible alternative to fully site-built treatment facilities.
What is the difference between a packaged and containerized wastewater treatment plant?
A packaged wastewater treatment plant refers broadly to an integrated and prefabricated treatment system. A containerized wastewater treatment plant specifically uses a shipping-container-style structure to house the treatment equipment. Containerized systems are therefore one type of packaged or modular wastewater treatment solution.
What type of sewage treatment plant is suitable for a house?
For individual homes, villas and other small residential applications, a household sewage treatment plant or small-capacity Johkasou may be suitable. The appropriate model depends on daily wastewater flow, installation conditions and the required effluent standard.
What wastewater treatment plant is suitable for rural areas?
Rural areas often benefit from decentralized sewage treatment systems because centralized sewer networks may not be available. Household systems, Johkasou, integrated sewage treatment plants and containerized wastewater treatment plants can all be considered depending on project scale.
Can a containerized wastewater treatment plant be expanded?
Modular and containerized wastewater treatment systems can provide greater flexibility for phased projects. Expansion possibilities depend on the original system design, treatment process and available site conditions.
What information is needed to select a wastewater treatment system?
The most useful information includes wastewater source, average and peak flow, wastewater characteristics, required discharge standard, installation location, available space and any special operating requirements.
Does Mejec provide customized wastewater treatment solutions?
Yes. Wastewater treatment equipment should be selected according to project-specific wastewater characteristics and treatment requirements. Mejec can develop a suitable configuration based on the project's capacity, application, installation conditions and required treatment performance.
Do you offer OEM/private label wastewater treatment systems?
Yes. We support full OEM and ODM customization, including branding, container color and layout, control panel design, process configuration, and technical specifications tailored to your market and local discharge standards.
Can the treatment capacity be customized for my project?
Yes. Our systems are designed to order — from small buried Johkasou units for households to containerized plants of several hundred m³/day and above. Send us your daily flow, water quality data, and effluent target, and our engineers will propose a matching process design.
What is your minimum order quantity (MOQ)?
MOQ varies by model — single-unit orders are accepted for most containerized and Johkasou products. Contact us with your target product and volume for a tailored quotation.
Do you ship by container?
Yes. Containerized systems ship as complete units, and other equipment is loaded into 20'GP and 40'HQ containers or flat racks. Our export team handles the full shipping documentation process worldwide.
Do you provide installation and after-sales support?
Yes. Systems arrive pre-assembled and pre-tested to minimize on-site work, and we provide installation drawings, commissioning guidance, remote technical support, and spare parts supply throughout the equipment's service life.
If you have any questions, please feel free to leave us a message
keep me informed
Get the latest news in exclusivity!
Tel: +86 19951100272
E-mail: mejec@lidinghb.com
Add: Artificial Intelligence Industrial Park, Suzhou, China.
Copyright© 2026 Mejec
Privacy Policy
