Physical characteristics by https://padlet.com/nurin051000/amy3rri3pwtp4mj9 Made by NUR IDA NURINA BINTI AZIZI (17DKA18F2031) NUR SABRINA BINTI MOHD SALLEH (17DKA18F2029) SHAZANA ATIKAH BINTI AZHAR (17DKA18F2025) NURUL ALIA BINTI NAHMUDIN (17DKA18F2041) en-us 2020-11-03 15:24:53 UTC 2026-01-13 19:52:10 UTC hello@padlet.com Physical characteristics nurin051000 https://padlet.com/nurin051000/amy3rri3pwtp4mj9/wish/886620598 1. Solids
Composed of floating matter, settle able matter, colloidal matter and matter in solution.

i) Total Suspended Solids (TSS)
  •   Total suspended solids (TSS) include all particles suspended in water which will not pass through a filter. 
  •  As levels of TSS increase, a water body begins to lose its ability to support a diversity of aquatic  life. 
  •  Suspended solids absorb heat from sunlight, which increases water temperature and subsequently decreases levels of dissolved oxygen.

ii) Total Dissolved Solids (TDS)
TDS are passed through the filter. TDS comprised of colloidal and dissolved solids. Colloids are typically in the size range from 0.001 to 1μm.

iii) Volatile Suspended Solids (VSS)
Those solids that can be volatilized and burned off when the TSS are ignited. Volatile suspended solids data is critical in determining the operational behavior and biological concentration throughout the system.

2. Turbidity
Measure of the light-transmitting properties of water, is another test used to indicate the quality of waste discharges and natural waters with respect to colloidal and residual suspended matter.
Units – NTU (NephelometricTurbidity Units) Equipment using to measure - electronic turbidity meter or a turbidity tube.
]]> 2020-11-03 15:39:37 UTC https://padlet.com/nurin051000/amy3rri3pwtp4mj9/wish/886620598 nurin051000 https://padlet.com/nurin051000/amy3rri3pwtp4mj9/wish/886845230 3.  Colour
  • Age of the waste water is determined qualitatively by its colour and odour. 
  •  Fresh waste water is usually a light brownish- gray colour. 
  •  Travel time of the collection system increases anaerobic conditions develop and colour of the waste water changes sequentially for gray to dark gray, and ultimately to black. 
  • This black colour is due to the metallic sulfides which formed under the anaerobic conditions.
 
4.  Absorption / Transmittance
 This is measure of the amount of light, of a specified wave length, that is absorbed by the constituents in a solution.
 Absorbance measure using the spectrophotometer.

5. Temperature
The temperature of waste water is commonly higher due to the addition of warm water from households and industrial activities.
Temp. is effects on chemical reactions and reaction rates, aquatic life and the suitability of the water.

6.   Electrical Conductivity
It is measure of the ability of a solution to conduct an electric current.
EC is one of the important parameter used to determine the suitability of the water for irrigation.

SI units – millisiemens per meter (mS/m) or micromhos per centimeter (μmhoms/cm) Equipment use to measure – Electrical conductivity meters.
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