What is biological sewage treatment plant?
Biological wastewater treatment is designed to degrade pollutants dissolved in effluents by the action of microorganisms. The microorganisms utilize these substances to live and reproduce. Pollutants are used as nutrients.
What are the two types of sewage treatment plants?
Generally, they can be classified into the following types of system: Activated sludge plant (ASP) Rotating disc system. Submerged aerated filter (SAF)
What does Biological Treatment remove?
Biological treatments rely on bacteria, nematodes, or other small organisms to break down organic wastes using normal cellular processes. Wastewater typically contains a buffet of organic matter, such as garbage, wastes, and partially digested foods.
What are the advantages of biological treatment?
Compared to other treatment methods, biological methods have certain advantages such as (1) treatment technology is traditional and well understood; (2) enhanced efficiency in terms of organic content removal; (3) cost-effective; and (4) environment friendly and safe.
What are the types of biological treatment?
There are two types of biological treatment process; aerobic and anaerobic. Biological wastewater treatment is an extremely cost effective and energy efficient system for the removal of BOD (Biological Oxygen Demand), since only micro-organisms are used.
What is the purpose of BOD?
BOD is a measure of the amount of oxygen required to remove waste organic matter from water in the process of decomposition by aerobic bacteria (those bacteria that live only in an environment containing oxygen).
What is the benefit of BOD?
It represents the quantity of oxygen which is consumed in the course of aerobic processes of decomposition of organic materials, caused by microorganisms. The BOD therefore provides information on the biologically-convertible proportion of the organic content of a sample of water.
How does a biological treatment work?
Biological therapy (also called immunotherapy, biological response modifier therapy, or biotherapy) uses the body’s immune system to fight cancer. The cells, antibodies, and organs of the immune system work to protect and defend the body against foreign invaders, such as bacteria or viruses.
What is a biological treatment system?
Biological treatment systems are “living” systems that rely on mixed biological cultures to break down the organics and remove organics from solution in the wastewater. Biological treatment is the most important step in wastewater treatment. Generally, sedimentation will only remove 35–50% of the BOD.
What are the advantages of BOD?
The main advantages of this method compared to the dilution method are: simplicity: no dilution of sample required, no seeding, no blank sample. direct reading of BOD value. continuous display of BOD value at the current incubation time.
Why is BOD5 important?
The BOD5 indicates how much dissolved oxygen (mg / l) is needed in a given time for the biological degradation of the organic wastewater constituents. This value is an important parameter for the assessment of the degree of pollution that wastewater represents for the environment (receiving water).
What is the disadvantage of BOD?
A major disadvantage of the BOD test is the amount of time (5 days) required to obtain the results. When a measurement is made of all oxygen consuming materials in a sample, the result is termed “Total Biochemical Oxygen Demand” (TBOD), or often just simply “Biochemical Oxygen Demand” (BOD).
What is a bio-pure sewage treatment plant?
The Bio-Pure Sewage Treatment Plant is a UK manufactured tank that is all contained under one lid. It has a 3-5 year emptying period due to its unique sludge return system and a robust design. Gravity and pumped options are available ranging in size from 1 to 50 people.
Who can use the bio-pure?
The unit is available in 9 sizes to cater from 1 to 40 persons and can be used for single houses, renovations, barn conversions, small communities, industrial units and camping sites. The Bio-Pure can therefore serve both domestic and commercial properties that have no access to mains drainage.
Why Biobio-pure is the best solution for your sewage treatment plant?
Bio-Pure gives a very discreet solution to on-site sewage treatment as the small lid is flush with the ground and unlike its rivals, the compressor housing is under the lid, with no visually intrusive kiosk. It is one of the most affordable, high quality products on the market and has one of the lowest running costs of any sewage treatment plant.
What is Biobio-pure?
Bio-Pure’s cultures, enzymes and nutrients are used to improve biotreatment performance and reduce BOD/COD loads in municipal and industrial water treatment clarifiers, trickling filters, ponds, lagoons, activated sludge systems and aerobic and anaerobic digesters.