Posts tagged 'suspended solids'

SDI test kits
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SDI test kits: what are they and how do they work?

What is SDI? Silt Density Index (SDI) is a measure to assess the fouling in water purification systems from Suspended solids and colloidal materials. When it comes to reverse osmosis membranes, suspended solids within the water can cause problems. Then these levels get high, it can cause fouling of the membrane. This will lead to: Increased cost for maintenance Reduced lifetime In...
Suspended solids
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What is Suspended Solids?

What is Suspended Solids? [caption id="attachment_2055" align="alignleft" width="313"] Suspended solids[/caption] Suspended solids refers to small solid particles which remain in suspension in water. It is used as one indicator of water quality, typically for wastewater applications and is used as part of the Charging system for trade effluent in the UK using the Mogden formula. It is ...
Suspended solids tests
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Which filter should I use for suspended solids tests?

Suspended solids tests are conducted as a water purity indicator, and to form part of discharge consent. The gravimetric method of suspended solids testing requires filter papers to be used, but these must be of the correct grade to ensure correct results. We've taken a look at which filter paper grades are approved for suspended solids tests.   Which filter paper should I u...
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How do I measure suspended solids? How is the gravimetric method different to other methods?

The measurement of Suspended Solids is often required for discharge consent, and values may be reported to the Environment Agency (EA). [caption id="attachment_8215" align="aligncenter" width="200"] Suspended solids give water a cloudy appearance[/caption] There are several methods for testing the suspended solids present in a water sample, here we discuss the differences between the differen...

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