Overview of Waste Water Testing Services
Wastewater from agriculture, chemical, and commercial industries can pollute land surface and groundwater. It is important to analyse the wastewater and treat it before drainage.
Water pollution generally results from human activity, and the pollutants released mostly come from industrial dumps, sewage leakages, oil spillages, heavy metals, animal wastes, chemical wastes, eroded sediments, deforestation, littering, fertilizers, herbicides, pesticides, etc.
The wastewater discharge of industrial users is under the Ministry of Environment, Forest Climate Change (MoEFCC) and Central Pollution Control Board. It provides for the product certification of the instruments, the personnel's competency certification, and the accreditation of laboratories.
Government parameters for wastewater
As per CPCB, Government has fixed parameters for wastewater within their limits:
For Salt pans, Shell fishing, Mariculture and Ecological sensitive zones
|
Sl. No. |
Parameter |
Standard |
|
1 |
pH range |
6.5-8.5 |
|
2 |
Dissolved Oxygen |
5.0mg/l |
|
3 |
Colour and Odour |
Especially caused by chemical compounds like creosols, phenols, naphthalene, pyridine, benzene, toluene etc. causing visible colouration of salt crystal and tainting of fish flesh. |
|
4 |
Floating Matters |
Surfactants should not exceed detrimental for use an upper limit of 1.0 mg/I and purpose. the concentration not to cause any visible foam. |
|
5 |
Suspended Solids |
None from sewage |
|
6 |
Oil and Grease (including Petroleum products) |
0.1mg/l |
|
7 |
Heavy Metals: Values depend on: Mercury (as Hg) Lead (as Pb) Cadmium (as Cd) |
0.001mg/l 0.001mg/l 0.001mg/l |
For industrial cooling, recreation(non-contact) and aesthetics
|
Sl. No. |
Parameter |
Standard |
|
1 |
pH range |
6.5-8.5 |
|
2 |
Dissolved Oxygen |
3.0 mg/I or 40 percent saturation value whichever is higher. |
|
3 |
Colour and Odour |
No noticeable colour or offensive odour |
|
4 |
Floating Matters |
No visible/obnoxious floating debris, oil slick, scum. |
|
5 |
Faecal Coliform |
500/100 ml (MPN) |
|
6 |
Turbidity |
30 NTU |
|
7 |
Dissolved Iron |
0.5mg/l |
|
8 |
Dissolved Manganese |
0.5mg/l or less |
Pollutants in the Waste Water
The typical pollutants in the wastewater are:
Objectives of Wastewater treatment
The followings are the objectives of the wastewater treatment:
- To improve water quality
The wastewater is tested in labs and then treated, which improves the quality of such water and makes it useful.
- To make wastewater usable for other purposes.
The wastewater treatment makes such water use so that it can be used for some purposes.
- Elimination of toxic substances and other pollutants
The pollutants and toxic substances are eliminated from the wastewater through wastewater treatment.
- Preservation of water quality of natural water resources
The wastewater treatment is done before the discharge of such water into the environment, and so it ends up improving the quality of natural water resources.
- Prevention of harmful disease
When treated, the wastewater becomes usable, so it no more causes harmful disease.
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Waste Water Testing
Wastewater testing tests the wastewater released from the households and the industries for the availability of harmful toxic contaminants and disease-causing pathogens. The main parameters against which the wastewater test is conducted are:
Laboratory testing of wastewater
After analysing the wastewater constituents at various stages of treatment, the laboratory professionals play a vital role in the efficient operation of wastewater treatment plants and thus help to protect the environment and public health.
The industries that require lab testing are:
Wastewater analysis includes:
Importance of wastewater testing labs
The followings are the importance of wastewater testing labs:
Wastewater Treatment Process
To protect the environment, communities and societies, the Government has required the treatment and testing of the wastewater from industries and households from chemical, pharmaceutical, food, beverages and other production facilities.
There are four main steps of the wastewater treatment process. The first one is the removal of all large and settleable solids from the wastewater. The second one is the removal of organic pollutants using accelerated microbiological growth. The third one is the reduction of nutrient loading in the wastewater by utilizing the combination of chemical and biological processes. And the last one is the removal of difficult emergent pollutants like pharmaceutical compounds or other complex molecules.
Analytical testing at each step requires monitoring key chemical parameters like nitrogen compounds, phosphates and chlorine.
Corpbiz support in Wastewater testing and treatment
We at Corpbiz provide Wastewater testing services as per the guidelines set by the Central Pollution Control Board or the concerned State Pollution Control Board. It takes almost 6-7 days for the analysis of wastewater.
If you would like to use our laboratory services feel free to contact us through our website, and we will assign you the expert. We will be happy to give you the best service of Wastewater testing.
Frequently Asked Questions
Wastewater is the used water affected by domestic, industrial and commercial use.
The wastewater contains organic contents, microorganisms, inorganic matters, nutrients and other pollutants.
The treatment and testing of wastewater are important to protect public health and the environment and maintain industrial process efficiency.
The industries for which the wastewater testing is done are:
- Abattoirs, meat and poultry industries
- Brewery, winery and any soft drink manufacturing industries
- Baking, ready meals and vegetable production and packaging manufacturing industries
- Commercial laundry industries
- Cosmetics manufacturing industries
- Dairy industries
- Fish processing industries
- Paper mills
- Petrochemical industries
- Pharmaceutical industries
- Textile manufacturing industries
- Waste recycling centre
The harmful impacts of improper wastewater treatment are:
- Chemical contaminants in wastewater affect marine life
- Bio-accumulation of chemicals in the food chain
- Untreated sewage wastewater has microorganisms that cause health issues
- Contamination of water sources by the pollutants such as faecal matter, chemical contaminants, etc.
The range of parameters in wastewater with the limits set by the CPCB guidelines are:
- The size of suspended solids should pass 850 microns IS Sieve
- pH value must be between 5.5 to 9.0
- the temperature must not exceed 5 degrees Celsius above the receiving water temperature
- total Nitrogen must not exceed 100mg/l
- arsenic maximum 0.2 mg/l
- Ammonical Nitrogen should not be more than 50 mg/l.
The main reasons for wastewater treatment are the environment and human health. Other major priorities are:
- Fisheries
- Wildlife Habitats
- Recreation and Quality of Life
- Health Concerns
