At the core of Cambridge Water Technology’s water treatment systems is our CoMag™ process. CoMag™ is our patented solids and precipitated particulate removal process that produces an effluent equivalent to ultra-filtration but at a fraction of the capital and operating cost of conventional filtration alternatives. Reliable, robust, simple and compact, CoMag™ systems are high performance, cost effective solutions for the treatment of municipal and industrial wastewater and the production of industrial process water.

CoMag™
Our CoMag™ process combines enhanced chemical coagulation and flocculation; the proven advantages of high-rate, ballasted clarification; and the fine particulate filtration capabilities of High Gradient Magnetic Separation.

CoMag™ extends the advantages of conventional ballasted clarification to enable significantly higher surface overflow rates (SOR). As shown in the video clip below, CoMag™ clarification is remarkably rapid. The advantages are distinctive: rapid clarification equates to low hydraulic retention times which enable the use of smaller clarifiers for a given flow; smaller clarifiers make for a smaller overall plant footprint and thereby, lower installed costs.

	Low capital/installation costs: CoMag™’s high-rate, ballasted clarification enables the use of small solids separation tanks that have relatively low construction cost. Their maintenance costs are low because there are no inclined plates or tubes that require frequent cleaning.
	Low operating costs: With readily available replacement parts, low power consumption, moderate chemical use, reliable unit operations, and no problems with plugging or fouling, the operating costs of CoMag™ are lower than competing technologies.
	Non-abrasive ballast: CoMag™’s ballast is heavier than sand (a specific gravity of 5.2 compared to sand of 2.7-3.0) and less abrasive, reducing wear and tear on mixers, pumps, and other treatment components.
	High reliability: CoMag™ components and fundamental processes have been proven in over 40 years of industrial operation. Developed and tested continuously since 1999, CoMag™ is a proven and reliable technology for water and wastewater treatment.
	Flexible and robust operation: The CoMag™ process can process wide ranges of flows and loads with almost no effect on contaminant removal performance or operational stability. This advantage makes CoMag™ superior to DAF units and processes that rely on sand filters, as they are much more sensitive to changes in flows and loads.
	Intrinsic redundancy: For additional polishing, the CoMag™ system can include a high rate magnetic filter. High flow rate, compact, and low in energy consumption, the magnetic filter is a fraction of the size of a sand filter, more effective in solids removal, and less cost to install and operate.
	Low head requirement: CoMag™ has a low hydraulic head requirement, even when including the high performance, high rate magnetic filter. CoMag™ often fits within the profile of an existing plant without the addition of expensive pumping.
	Reliable in upsets: CoMag™’s treatment efficiency actually improves when an upset in the secondary system discharges excess solids. As with the internal solids recycle, biological solids serve to increase nucleation sites, enhance precipitation kinetics and promote sweep floc. The result is superior contminant removal.
	Flexibility of Coagulant Type: CoMag™ produces high quality effluent with alum, ferric chloride, ferric sulfate and polyaluminum chloride (PAC). A facility can determine which coagulant makes the most sense for its needs without concern for performance loss.
	Cost savings for ultraviolet disinfection: The high transmissivity of CoMag™ effluent enables the use of clean, non-toxic ultraviolet technologies for final wastewater purification.
	Rapid start-up and recovery times: From a cold start or recovery from a plant upset, CoMag™ is fully operational in approximately 10 minutes.

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