NaOH is mostly used in wastewater treatment (swimming pool water treatment, pipe cleaning, industrial wastewater treatment, pond wastewater). Depending on each cleaning purpose, you should balance the appropriate mixture.
Summary table
Chemical warehouse of the company
DETAILS ABOUT NAOH CHEMICAL
Recognize:
NAOH forms a strong alkaline solution when dissolved in solvents such as water. It is widely used in industries such as water treatment, paper, textiles, soaps and detergents. World production in 1998 was about 45 million tonnes. NAOH is also used mainly in laboratories.
What color is NaOH?Pure NAOH is a white solid in the form of pellets, flakes or granules or as a 50% saturated solution. NAOH readily absorbs CO2 from the air so it is usually stored in a tightly closed container. It reacts violently with water releasing a large amount of heat, and is soluble in ethanol and methanol. It is also soluble in ether and non-polar solvents, and leaves a yellow color on paper and fibers.
To learn more about NaOH preparation process in industry, you can refer to the detailed article here.
Physical properties of caustic soda (NaOH):
- + Dissolution enthalpy ΔHo -44,5kJ/mol
- + In solution it forms monohydrate at 12,3-61,8 °C with a melting point of 65,1 °C and a density in solution of 1,829 g/cm3
Chemical Properties:
- + Reacts with acids and acid oxides to form salt and water
- NaOH(dd) + HCl(dd) → NaCl(dd) + H2O
- + Reaction with carbon dioxide
- 2 NaOH + CO2 → Na2CO3 + H2O
- + Reacts with organic acids to form its salts and hydrolyzes esters
- + Reacts with strong metals to form new bases and new metals:
- NaOH + K → KOH + Na
- + React with salt to form new base and new salt:
- 2 NaOH + CuCl2 → 2 NaCl + Cu(OH)2
50% NAOH solution
How to prepare NAOH in wastewater treatment
The main task of caustic soda in groundwater treatment as well as wastewater treatment is to adjust the PH of the water to be treated. When the water contains a lot of acid or salts, it reduces the PH of the water. Before treatment, we must bring the PH to a suitable value range to proceed with the treatment. The purpose of increasing the PH is understood by everyone to create a suitable PH environment for some reactions to occur, making it more favorable for the groundwater treatment process, as well as wastewater treatment.
When adding caustic soda, some metal hydroxides will form a more stable form and precipitate or form glue more easily than when there is no caustic soda.
In addition, in the process of treating domestic wastewater or some wastewater with high COD content, if we want to treat it with microorganisms, we must also raise the pH by adding caustic soda. The purpose is to bring the pH to a suitable level so that microorganisms have a favorable environment to grow and create biomass. When microorganisms live and grow, our water treatment is also effective.
If you need to know industrial NaOH price, please contact Loc Thien Chemical Company immediately.
Therefore, we see that the application of caustic soda in groundwater treatment and wastewater treatment is very important. But it is not necessary to choose the type of caustic soda and the concentration of the addition appropriately. Avoid counterproductive phenomena.
To add caustic soda into the water that needs to be treated, people often use dosing pumps, which are piston pumps or diaphragm pumps, to quantitatively add caustic soda into the water that needs to be treated.
CONTACT US
- Head office: 452/6B Provincial Road 10, Binh Tri Dong Ward, Binh Tan District, Ho Chi Minh City
- Phone: 028 6269 5669 – 028 6269 5662
- Hotline: (+84) 979 891 929
- Email: locthien@locthien.vn
- Website: locthien.vn - hoachatcoban.net
Warehouse office branch:
- Warehouse 1: Phuoc Hung Hamlet, My Xuan Ward, Tan Thanh District, Ba Ria - Vung Tau
- Warehouse 2: Phuoc Thai, Phuoc Binh Ward, Long Thanh, Dong Nai
- Warehouse 3: Tan Dong Hiep B Industrial Park, Di An, Binh Duong
- Warehouse 4: Hoa Khanh Industrial Park, Da Nang
- Warehouse 5: O Mo Industrial Park, Phuoc Thoi Ward, O Mon District, Can Tho City
- Warehouse 6: Dai Dong - Hoan Son Industrial Park, Tri Phuong Ward, Tien Du, Bac Ninh
Comments are closed