Water Filtration Media

Product Range

Specifications

Backwashing Specifications

Standards

Packing Options

Past Projects




Filter Media Made To Specification

River Sands is the Australian market leader in the manufacture and distribution of water filtration media including sands, gravels, coal, garnet and manganese greensand. We also regularly export this material to many water treatment plants throughout Asia. In addition to standard particle gradings which are of consistently high quality, we can also custom produce filter media to your requirements from written specifications or samples. Simply call our experienced technicians to ensure your needs can be met confidently and without delay.

Strict quality control procedures ensure that all River Sands filtration sand and media complies with the AWWA B100 Standard for filtering material.

** River Sands' graded sands can also used for textured and decorative coatings, slip-resistant surfaces, wet sandblasting and soil density testing. Our filter gravel can also be used as decorative pebble and drainage material.


Product Range

Filter Sand Filter Coal Filter Gravel
Filter Garnet Manganese Greensand Granulated Activated Carbon



Filter Sand

Our filter sand is sourced from the surrounds of the 400 million year old Logan River System.

It is hard and durable and has a slow breakdown rate – thus ensuring
a longer filtration life. It also has good backwashing characteristics, particularly when used in dual media filtration with filter coal.

And because our filter sand is washed, dried, screened and packaged
(to the AWWA B100 -89 Standard) at the Carbrook site, we can offer competitive prices and prompt delivery.

Physical Properties Typical Results
Specific Gravity
Solubility
Loss on Ignition
Friability
Effective Size
Uniformity Coefficient
 2.65 Acid
0.8% in 10% HCI
0.6%
15 min - 2.8%
to order (typically 0.6 - 0.7mm)
to order (typically 1.25 - 1.5mm)





Standard Sizes

Product Number Effective Size (mm) Nominal Size (mm)
7M
7C
6.5
6		 0.45 - 0.55
0.55 - 0.65
0.85 - 0.95
1.5 - 1.7		 0.5 - 1.0
0.6 - 1.2
0.8 - 1.8
1.5 - 3.0


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Filter Coal

Our Filter Coal is mined then crushed, sized and packaged in Australia.

It provides a dense, hard and durable filter media which is free of clay, shale and extraneous material - giving many years of consistent trouble free service. It is particularly effective when used in dual media water filters with filter sand.

River Sands Filter Coal is highly regarded for its hardness and consistency and has a low *Hargroves Grindability Index - encouraging longer filter media life. In addition, the low specific gravity of our filter coal encourages effective backwashing.

Our filter coal is available in bulk bags or 22.5 kg plastic bags.

* Hargroves Grindability Index -

Physical Properties Typical Results
Specific Gravity
Solubility
Loss on Ignition
Friability
Effective Size
Uniformity Coefficient
 1.45
<1.0%
0.6%
<50
1.0 - 1.2 mm
1.3




Standard Sizes

e.s. 0.8 - 1.0mm       e.s. 1.0 - 1.2mm         e.s. 1.2 - 1.4 mm

Filter Coal made to your specifications

Physical Properties Typical Results
Effective Size
Uniformity Coefficient
Bulk Density
Specific Gravity
Acid Solubility
Hargroves Grindability Index 		To order
1.3 or more
0.7 T/m3
1.45
< 1.0%
HGI < 50

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Filter Gravel

Filter gravel is used as a support media to filter sand and coal in water filters.

River Sands Filter Gravel is a hard, round predominantly quartz aggregate. The gravel, like filter sand, contains hard durable particles with a slow breakdown rate. This helps to prolong filter media life.

The gravel is screened into three standard sizes and packed into bulk bags or 20kg plastic bags.

Physical Properties Typical Results
Specific Gravity
Acid Solubility
Physical Size
Size Tolerance
2.65
1.0% in 20% HCI over 24 hours
to order
8% undersize and 8% over


Standard Sizes

Product Number Nominal Size (mm)
5
4
3
2		 3 - 6
6 - 12
10 - 20
20 - 40

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Filter Garnet

Filter Garnet is used as a filtration media in conjunction with sand, gravel and occasionally coal.

Garnet can be purchased in 25kg or 1T bulk bags.

The physical characteristics of the garnet are as follows:

Physical Properties Typical Results
Normal Size
Bulk Density
Specific Gravity 		(typically 0.2 - 0.6mm)
2.4 T/m3
4.0 - 4.2


Standard Sizes

0.2 - 0.6mm     0.6 - 1.2mm

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Manganese Greensand

Manganese Greensand is used to remove iron, manganese and hydrogen sulphide from water resources. It is used alone or in combination with coal in dual media filtration systems.

We sell Manganese Greensand and supply it in 19.5 kg bags.

Physical Properties Typical Results
Normal Size
Specific Gravity 		0.2 - 0.85mm
2.4

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Granulated Activated Carbon

Granulated Activated Carbon is a specially treated coal based carbon with high pore distribution and a highly textured surface structure. It is used in the water and wastewater treatment industry to remove taste and odour compounds from water (ie. algal tastes, odours and toxic effects) and is commonly used in conjunction with sand filters.

It is supplied in 20kg or 25kgs bags.

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