Question: What Is Difference Between ETP And STP?

What are the 3 types of sewage treatment?

Sewage treatment is done in three stages: primary, secondary and tertiary treatment..

What is COD and BOD in ETP water?

COD or Chemical Oxygen Demand is the total measurement of all chemicals (organics & in-organics) in the water / waste water; BOD is a measure of, the amount of oxygen that require for the bacteria to degrade the organic components present in water / waste water.

What are the 2 types of sewers?

There are two types of sewer systems in the City: a separate sewer system and a combined sewer system. Separate sewer systems have two separate pipes, with one pipe conveying stormwater from and one pipe conveying sanitary sewer. Combined sewers have one pipe that conveys a mix of sanitary and stormwater.

What are the 5 stages of water treatment?

The 5 major unit processes include chemical coagulation, flocculation, sedimentation, filtration, and disinfection (described below). There are chemicals added to the water as it enters the various treatment processes.

What is BOD formula?

BOD = biochemical oxygen demand, mg/L. When seed is added, seed control tests must be done to determine the amount of oxygen depleted by the seed. Calculation of BOD includes a correction factor for seed as expressed by Equation 2.

What is STP in texting?

STP — S’il Te Plaît. STP — Send Tell Please.

What is STP & ETP?

Effluent Treatment Plants (ETP) 2. Sewage Treatment Plants (STP) 3. … Wastewater treatment is a process, wherein the contaminants are removed from wastewater as well as household sewage, to produce waste stream or solid waste suitable for discharge or reuse.

How do we treat sewage?

Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface. The settled and floating materials are removed and the remaining liquid may be discharged or subjected to secondary treatment.

What does STP mean in school?

STUDENT TRAINING PROGRAM*STP (STUDENT TRAINING PROGRAM)

What is ETP system?

EFFLUENT. SLUDGE. • ETP (Effluent Treatment Plant) is a process design for treating the. industrial waste water for its reuse or safe disposal to the environment.

Why is ETP important?

ETP plays an important role in treating industrial wastewater as well as sewages generated from households. Packaged effluent treatment plants help both small- and medium-sized industries by disposing of the effluents generated at their facilities. Otherwise, it would be difficult for them to properly treat wastewater.

Why ETP is required?

Effluents from food and beverage factories contain degradable organic pollutants. Since industrial wastewater contains a diversity of impurities and therefore specific treatment technology called ETP is required. … To reduce the usage of fresh water in industries.

What is BOD COD ratio?

BOD is oxygen demand for oxidation of organic matter by micro organism. COD is oxygen demand for oxidation of organic and non biodegradable organic matter. … In domestic waste the ratio between BOD/COD is 1:2. The COD/BOD ratio is useful for assessing the amount of sewage available for biological treatment.

What is STP in technology?

It’s called straight-through processing (STP): the ability to streamline operations by automating the processing of transactions, using the Internet as the means of exchanging data. The idea is to move data through the value chain, from beginning to end, without rekeying the data at each stage in the process.

How many types of ETP plants are there?

There are four ways in which a water treatment plant can operate: Effluent Treatment, Sewage Treatment, Common and Combined Effluent Treatments, and Activated Sludge Treatment.

What is full form STP?

STP stands for Sewage Treatment Plant. It is a facility that receives the waste from domestic, commercial and industrial sources and filters it to remove the harmful substances that deteriorate water quality and affect public health and safety when discharged into rivers, canals, and other water bodies.

What is the use of ETP plant?

The Effluent treatment plants (ETP) are used for the removal of high amounts of organic compounds, debris, dirt, grit, pollution, toxic, non-toxic materials and polymers etc. from industrial effluent.

Why is COD higher than BOD?

COD is normally higher than BOD because more organic compounds can be chemically oxidised than biologically oxidised. This includes chemicals toxic to biological life, which can make COD tests very useful when testing industrial sewage as they will not be captured by BOD testing.