SPX Cooling Technologies MCR3100 manual Faster Installation, Modular Biological Treatment Media

Modular Biological Treatment Media

MARPAK is a modular PVC corrugated media specifically designed for biological treatment applications. MARPAK media is manufactured from rigid PVC sheets that are UV protected and resistant to rot, fungi, bacteria, acids and alkalies commonly found in wastewater. MARPAK modules are manufactured in various sheet thicknesses to meet specific structural requirements. MARPAK includes a full range of modular PVC media geometries for wastewater treatment including - complete secondary treatment (Figs. 8-1 and 8-2), nitrification (Fig.

9-1), denitrification, industrial roughing filters and anaerobic treatment.

Flow Configuration

of MARPAK MXF Series Media

Retention Time Versus Flow At A Media Depth Of 10ft.

4-1

Faster Installation

		Flow m3/m2/h
		2.0	3.0	4.0	5.0	6.0
	15
	14
	13
	12
	11
	10
	9			60° Cross Flow
	8
				Modular Media
	7
	6
	5
In Minutes	4
	3
	2		Vertical Flow
Time			Modular Media
Retention	1
	0.4	0.8	1.2	1.6	2.0	2.4
4-2		Flow GPM/ft2

Source: “Plastic-Packed Trickling Filters” by E. Sarner

Extensive testing has proven that taller mod- ules produce the same water distribution as alternating 1'-0 modules. This means 4 ft, 6 ft, or even 8 ft modules can be used to reduce installation time and minimize the number of clog-prone module interfaces.

Retention Time Versus Flow

At A Media Depth Of 10ft.

Flow m3/m2/h

1.2 2.4 3.6

20 60° Cross Flow Modular Media

16 Random Media

MinutesIn	12
	8
Time	4
	0
Retention
	2

0 0.5 1.0 1.5

Flow GPM/ft2

4-3	Source: “Evaluation of Plastic Media In Trickling Filters”,
	by T. Richards and D. Reinhart