High Rate Clarification

Drinking Water

The Mega-SETTLER (Plate Settler System) for Drinking Water design program calculates the effective projected horizontal surface area required for a given design flow, while optimizing other variables critical to the process. The result is the most efficient approach possible to maximizing the treatment capacity of the basin and improving effluent quality.


Plate settlers, often called inclined plate settlers, are a favored solution for upgrading a wastewater treatment plant when a new plant is not an option. The Mega-SETTLER (Plate Settler System) for Wastewater processes billions of gallons of water every day. Tested and certified to ANSI/NSF-61 standards and constructed of 100% stainless steel for superior longevity, it’s the strongest plate settler system available and the only one that can safely support the weight of operators for wash-down and service.


Paddle wheel flocculators could be compared to the movement of the paddle wheel boat. Their slow speed and low shear mixing method is well suited for the water treatment processes municipalities require. The Mega-FLOC Horizontal Paddle Wheel Flocculator is typically used at large water treatment plants.
The Mega-FLOC (Vertical Paddle Wheel Flocculator) is typically used at smaller water treatment plants and commonly used in flocculation basins. Along with the proven process performance of a paddle wheel design, JMS Mega-FLOC (Vertical Paddle Wheel Flocculators) follow the “Ten States Standards” and are optimized to produce the highest quality floc particles. The system is NSF-61 certified and processes billions of gallons of water every day.
The Mega-FLOC (Walking Beam Flocculator) is often used in deep basins and where the highest quality floc particle is desired. This system is overwhelmingly selected for its proven flocculation process performance, quality, safety, ease of maintenance, low lifetime cost of ownership and longevity.

Sludge Removal

The Mega-VAC uses the hydraulic head differential between the water surface and the sludge discharge elevation. Head pressure in the basin forces sludge into the dual header orifices, and on to the discharge point for collection. This hoseless design, with proximity sensors for end of travel control, has resulted in a reliable low head-loss system, powered by gravity, effective for most water and wastewater applications.
Sedimentation basins prepare water for final filtration during the water treatment process. Excessive buildup of sludge can negatively affect turbidity, tank volume and downstream membranes and filters. Based on sound principles yet flexible by design, the Mega-SCRAPER (Reciprocating Sludge Removal) has applications for water, wastewater and industrial sedimentation systems. The system is made in the USA and based on proven design concepts developed over the past 60+ years.
Scum pipes represent one of the simplest and most economical ways to remove scum from a water surface in both water and wastewater treatment. These slotted pipes rotate forward and backward by manual or electronic control, on a continuous or intermittent basis. Also called rotating scum pipes, scum skimmers, rotating pipes or rotating troughs, these systems are used in water treatment systems worldwide in circular and rectangular clarifiers, dissolved air flotation basins, settling basins and other process basins where surface scum is an issue.

Flow Control

Troughs are used in wastewater and water treatment systems to transport material to different plant locations. For optimal water management in both water and wastewater treatment applications, the Mega-TROUGH (Collection Trough) is used with sedimentation basins, clarifiers, gravity filters, and aeration tanks.
The JMS Mega-WALL Baffle System baffles and weirs are used in flocculators, aerators, clarifiers and other tanks to improve flow patterns and/or retention time, increasing system efficiency. The baffles are effective at preventing channeling and minimizing short circuiting.


The JMS Mega-SYSTEM (Packaged Plate Settler System) was developed by JMS engineers to meet the needs of smaller water treatment or industrial applications. Using the same proven concepts as our Mega-SETTLER (Plate Settler System), Mega-SYSTEM units are custom designed for the requirements of each application. Mega-SYSTEM packages can include rapid mix, flocculation, plate settler sedimentation, and sludge removal.


JMS has been designing and manufacturing equipment since 1962 with over 3,000 installations. We know that technical service and the availability of quality parts are critical to your operation and to extend the life of your equipment for years to come. Given that history, we have a fully dedicated management, sales, project management, design, engineering, purchasing and field services team to support providing you the quality parts and services you need. We are ready to help you keep your system working as intended, day in and day out.