How to reduce COD & BOD in a treated water after ETP
1. Remove O&G by DAF System etc. 2. Remove TSS to reduce loading COD/BOD before biological treatment by DAF, Clarifier etc. May be you need to adjust pH to meet optimum reaction with chemical flocculant and flocculent 3. Biological process to reduce COD/BOD 4. Post treatment (settling to separate TSS generate by biological process). 5.
The schematic diagram of Wastewater Treatment Plant (WTP) is presented in Fig. 1.. Analytical procedure: The raw wastewater samples were collected from the main outlet of wastewater from the Technical College. The raw water samples were passed through different steps as indicated in Fig. 1 for the removal of COD and BOD. The treated and untreated wastewater samples were collected on weekly
What is the relationship between the COD and BOD values
COD is a measure of total organic molecules dissolved in waste water, Where as The concept of BOD came after cities started dumping their waste water into the water bodies and this led to
A stripping system is installed and serves for reducing the ammonia nitrogen content and also the chemical oxygen demand(COD)in the process waste water to the standard values downstream the fertilizer production process. Initially the waste water is fed into the tank near ground level. From there it is conducted into a Micro Bubble
BOD and COD (Water and Wastewater) Equipment
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Typical BOD/COD of untreated domestic wastewater: 0.5-0.8 If BOD/COD ratio is 0.5: →Waste is considered to be easily treatable by biological means If BOD/COD ratio is 0.3: →Organics in wastewater may be refractory →Organics in wastewater are degradable. However, another substance in wastewater leads to inhibition of bacteria that
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Revistas citadas: 28082: 146203: J AM CHEM SOC: 2391: 0.0163539735846734: PHYS REV LETT: 1966: 0.0134470564899489: ORGANOMETALLICS: 1599: 0.0109368480810927: J BIOL
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Revistas citadas: 28082: 146203: J AM CHEM SOC: 2391: 0.0163539735846734: PHYS REV LETT: 1966: 0.0134470564899489: ORGANOMETALLICS: 1599: 0.0109368480810927: J BIOL
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- Which cationic polyacrylamide is synthesized through UV initiation?
- Recently, Ma et al. used acrylamide (AM) and methacryloxyethyl trimethyl ammonium chloride (DMC) to synthesize a novel cationic polyacrylamide (CPAM) through low-pressure ultraviolet (UV) initiation.
- What is cationic polyacrylamide (CPAM)?
- Cationic polyacrylamide (CPAM) is one of the most frequently used flocculants with high intrinsic viscosity and charge density. This flocculant is a water-soluble acrylamide-based polymer having cationic quaternary ammonium groups .
- How is cationic polyacrylamide obtained?
- In the photoinitated polymerization method (Fig. 4), the cationic polyacrylamide is obtained by photoactivation of monomer solution. This synthesis technique is characterized by many advantages: operation simplicity, easy control, low cost, and obtained product has high purity [11, 12].
- What are the different types of cationic polyacrylamide synthesis technologies?
- There are four main kinds of cationic polyacrylamide synthesis technologies: in aqueous solution, in dispersion, by inverse emulsion, or through photoinitiated polymerization . These methods had experienced numerous developments and modifications such as free radical copolymerization or grafting processes .
