Particles are present everywhere in natural waters and in water flowing through water distribution or purification systems as well as in wastewater treatment plants and particle analysis is required in water testing.
Particle size distribution and counting analysis help understand the composition of water in rivers and streams, water coming into treatment plants, water is used in various processes as well as water produced by treatment and purification processes.
Water testing to understand the particle size distribution and a number of the particles present in any kind of water helps in designing suitable treatment processes by proper selection of filters and filtration techniques.
Monitoring these properties also helps in taking decisions on the proper operation of water purification systems and their proper maintenance and upkeep to for optimum process efficiency.
There are four main approaches prescribed for testing particle size distribution and particle counts in water and wastewater –
- Optical Microscopy – that is a direct counting and sizing by a microscope
- Coulter counter or electrical sensing zone instruments
- Light obscuration or light-blockage instruments
- Light scattering instruments or laser diffraction-based particle size analyzer
All of these techniques are recommended in the standard methods for the examination of water and wastewater which is prepared and published by the American Public Health Association, American Water Works Association and the Water Environment Federation, for water testing.
The method number 2560 of APHA, a standard method for the examination of water and wastewater provides a detailed method for particle counting and size distribution in water and wastewater.
Our water testing laboratory carries out the test for various industries and institutions. Besides particle analysis in water and wastewater, we also offer a complete array of water testing services, including chemical, biological evaluation, pesticide residue etc. following national and international standards.
Our laboratory is ISO 17025 accredited by the National Accreditation Board for Testing and Calibration Laboratories (NABL), India, for the analysis of various parameters and water.
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