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JMS Mega-VAC (Sludge Removal System)

Efficient removal of sludge from the bottom of sedimentation basins in water and wastewater treatment applications has long been an issue. Failure to address sludge removal can reduce the effective volume of the tank as well as the efficiency of the sedimentation process. Former sludge removal systems provided a solution to the problem, but came with issues related to handling of the sludge.

The new hoseless Mega-VAC (Sludge Removal System) sludge removal system developed by JMS addresses these concerns by combining proven technology with knowledge from 50 years of outfitting sedimentation basins. The JMS Mega-VAC design uses the hydraulic head differential between the water surface and the sludge discharge elevation (or pump when needed). Head pressure in the basin forces sludge into the dual header orifices, and on to the discharge point for collection. This hoseless design has resulted in a reliable low head-loss system, powered by gravity, effective for most water and wastewater applications.

JMS Mega-VAC (Sludge Removal System) Advantages

Process Advantages

  • Flow balancing diagonals for even intake across the header pipe result in efficient wall to wall sludge removal
  • Powered by hydraulic head differential lowers operational costs
  • Dual header maximizes solids removal, less water waste
  • Mega-VAC design eliminates the need for potentially problematic hoses

Experience Advantages

  • JMS applies over 50 years of experience to each Mega-VAC system
  • JMS product line can outfit the entire floc/sed basin for optimum results

Maintenance Advantages

  • Stainless steel and non-metallic for corrosion-resistance, and long life
  • Leading edge inlet orifices are designed to eliminate clogging
  • Proven cable reel design allows for easy cable adjustments and maintenance

Mega-TREATMENT (Water Treatment System) Mega-VAC (Sludge Removal System) process zoom in

JMS Mega-VAC (Sludge Removal System) Key Features

JMS Mega-VAC (Sludge Removal System) telescoping seal assembly demo unit

Telescoping Seal Assembly

JMS patent pending Telescoping Seal Assembly is designed to optimize sludge removal, improving system efficiency, and lowering maintenance. This JMS feature allows the sludge to be carried through the telescoping pipe to the discharge outlet.

JMS Mega-VAC (sludge removal system) flow balancing diagonals demo unit

Flow Balancing Diagonals

JMS patent pending Flow Balancing Diagonals serve to equalize the pressure differential across the headers. This results in more even sludge removal across the entire length of the header.

A System With Drive

The cable drive system provides the muscle behind every Mega-VAC unit at work today. This unit drives a shaft with dual cable drums attached. Each cable drum can rotate independently, allowing for easy cable tensioning at startup or during subsequent cable tensioning activity. The dependable Mega-VAC system does not rely on friction or cable tension, so it is unaffected by cable stretch.

Two Heads are Better Than One

Utilizing a dual header design, with patent pending flow balancing diagonals, the Mega-VAC takes process efficiency to new lengths . . . literally. The dual head design, removes sludge from the entire basin floor despite traveling only 55% its length. Less movement means reduced wear, increased longevity, and higher removal rates. Durability is also enhanced through the use of stainless steel and non-metallic components in all submerged parts of the Mega-VAC system.

Energy plows mounted on the leading edge of each header pipe impart energy into the sludge blanket as the header assembly travels the basin floor. That energy helps sludge thicken and encourages flow, for higher solids removal with less water waste.

Flow balancing diagonals, a JMS technology advancement, minimize the effect of the differential pressure across the headers, and have a balancing effect on flow entering each orifice. The result is more consistent sludge removal across the entire length of the header.

Mega-VAC travel is guided by the basin walls, without the need for guide rails. Installation in new or existing basins is simplified, and there is no possibility of the unit coming off of its guide system. Supported by non-metallic wheels the assembly easily adjusts to minor variations in the basin floor.

JMS Mega-VAC (Sludge Removal System)

JMS Mega-VAC (Sludge Removal System) Success Story

JMS Mega-VAC (Sludge Removal System) Success Story

The town of Gastonia, NC is not far from the JMS Charlotte facility. There, Mountain Island Lake serves as the source of water for Two Rivers Utilities. The nearly 100 year old water plant on this site has been expanded five times over the years and now has the capability to produce up to 24 MGD to serve the area’s needs, however there are even bigger plans for the future

JMS has been part of more than one upgrade at this plant over the years, including Mega-FLOC (Vertical Paddle Wheel Flocculators). For the past year, the JMS Package Plate Settler Pilot Unit, including Mega-VAC, has been onsite as one of the initial steps toward Gastonia’s largest single project, $100MM in upgrades at this plant. Under the guidance of LaBella Associates, careful consideration is being given to various plant upgrades, including membrane technology, and JMS Mega-VAC sludge removal equipment.

After running the JMS Pilot Unit for over a year, results have been very impressive. In the words of those involved with the project, high quality water is consistently delivered from the JMS Pilot Unit to the membrane filters. The JMS Mega-VAC has become a vital part of this successful operation.

Similar JMS Products

JMS Mega-SETTLER (Plate Settler System)

JMS Mega-SCRAPER (Sludge Removal System)

Mega-SYSTEM (Packaged Plate Settler System)