characteristics of industrial wastewater slideshare
What are the characteristic of industrial wastewater?
Other important physical characteristics include odor, temperature, color, and turbidity. In cases where the industrial effluents are being mixed with the waste waters, Biological Chemical Demand (BOD) plays a very important role in the type of treatment processes to be used.
What are the properties of industrial waste?
The examined physical properties of industrial wastes are the following: particle-size distribution and the related mean diameter and uniformity coefficient, permeability in saturation conditions, saturation water content, field capacity and effective porosity.
What is characteristics of waste water?
Odor – Wastewater that includes sewage typically develops a strong odor. Temperature – Due to more biological activity, wastewater will have a higher temperature. Turbidity – Due to suspended solids in wastewater, wastewater will have a higher turbidity, or cloudiness.
What indicates physical characteristics of industrial wastewater?
Explanation: The principal physical characteristics of wastewater include solids content, colour, odour and temperature. The total solids in a wastewater consist of the insoluble or suspended solids and the soluble compounds dissolved in water. 2.
What are the types of industrial wastewater?
Generally, industrial wastewater can be divided into two types: inorganic industrial wastewater and organic industrial wastewater.
What are 3 types of industrial waste?
Characterizing the Different Types of Industrial Waste
- Chemical Waste. Chemical waste is typically generated by factories, processing centers, warehouses, and plants. …
- Solid Waste. …
- Toxic and Hazardous Waste.
What is meant by industrial wastewater?
Industrial wastewater is the aqueous discard that results from substances having been dissolved or suspended in water, typically during the use of water in an industrial manufacturing process or the cleaning activities that take place along with that process.
What are the physical characteristics of sewage?
Sewage Characteristics
Physical (Temperature, colour, smell, solids) Chemical (BOD, COD, Nutrients and dissolved solids; and. Biological.
What causes industrial wastewater?
Fossil-fuel power stations, particularly coal-fired plants, are a major source of industrial wastewater. Many of these plants discharge wastewater with significant levels of metals such as lead, mercury, cadmium and chromium, as well as arsenic, selenium, and nitrogen compounds (nitrates and nitrites).
What are the major constituents of industrial wastewater?
1.3 Major Pollutants of Industrial Wastewater
| Industry | Major water pollutants |
|---|---|
| Dye manufacturing | Copper, colour, salt, sulfides, formaldehydes |
| Paint manufacturing | Chromium, zinc, lead, volatile organic compounds (VOCs) |
| Textile | Iron, chromium, chlorinated compounds, urea, salts, hydrogen peroxide, high pH NaOH, surfactants |
Why is industrial wastewater treatment important?
Benefits of Industrial Wastewater Treatment
Wastewater treatment reduces the amount of waste released into the environment. Water loss due to water pollution is reduced or eradicated. Potentially harmful contaminants are not released into the environment.
What is the objective of industrial wastewater treatment?
The principal objective of wastewater treatment is generally to allow human and industrial effluents to be disposed of without danger to human health or unacceptable damage to the natural environment.
What is the difference between the characteristics of industrial and domestic wastewater?
Compared with domestic sewage, the composition of industrial sewage is more complex, the degree of pollution is higher, and the difficulty of treatment is higher. Industrial wastewater treatment corresponds to different types of industries.
What are the three major components of a wastewater system?
The system consists of three basic elements: collection chambers, sewer network and a vacuum station. Any type of (low-)flush toilet (including pour-flush) can be used. The wastewater drains from the household to a collection chamber by gravity.
What are the 5 stages of wastewater treatment?
Treatment Steps
- Step 1: Screening and Pumping. …
- Step 2: Grit Removal. …
- Step 3: Primary Settling. …
- Step 4: Aeration / Activated Sludge. …
- Step 5: Secondary Settling. …
- Step 8: Oxygen Uptake. …
- Sludge Treatment.
What are the 3 stages of wastewater treatment?
There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment.
What are the benefits of wastewater treatment?
Here are the five major benefits of wastewater treatment.
- Provides clean, safe water processed. To many, it is unknown to them that wastewater can be turned into reusable water. …
- Saving you money. …
- Beneficial to the environment. …
- Saving water. …
- A way to minimise waste.
What are the 7 steps in wastewater treatment?
The Wastewater Treatment Process
- Stage One — Bar Screening. …
- Stage Two — Screening. …
- Stage Three — Primary Clarifier. …
- Stage Four — Aeration. …
- Stage Five — Secondary Clarifier. …
- Stage Six — Chlorination (Disinfection) …
- Stage Seven — Water Analysis & Testing. …
- Stage Eight — Effluent Disposal.
What are the 3 stages of wastewater treatment PDF?
Wastewater is treated in 3 phases: primary (solid removal), secondary (bacterial decomposition), and tertiary (extra filtration).
What are the 4 steps of water treatment?
4 Steps of Community Water Treatment
- Coagulation and Flocculation. …
- Sedimentation. …
- Filtration. …
- Disinfection. …
- Learn More. …
- Recommended Readings.
What is screening and straining?
Screening and straining devices trap trash and coarse debris using smaller apertures such as grates or screens.
What are the methods of wastewater treatment?
Four common ways to treat wastewater include physical water treatment, biological water treatment, chemical treatment, and sludge treatment.