Professional Manufacturer Best Selling Centrifugal Machine Urban Waste Machine Decanter Centrifuge

• Warranty: 1 Year
• Type: Centrifuge
• Object: Cosmetic
• Separation Mode: Sedimentation Type
• Operating Type: Continuous Type
• Installation: Horizontal
• Centrifuge Type: Horizontal Spiral Centrifuge
• Condition: New
• Separation: 2phase Separation
• Operation: Easy Operation
• Feature: High Efficiency
• Warranty of Core Components: More Than 5 Years
• Name: Decanter Centrifuge
• Bearing: S-Kf Bearing
• Key Selling Points: Famous Brand PLC
• Voltage: Customerized
• Discharge Type: Self-Cleaning
• Structure: Stable Structure
• Motor: ABB
• Weight: 2000
• Bowl Material: Stainless Steel 304/316L/Duplex Steel
• Application: Oil Extraction
• Transport Package: Wooden Case
• Trademark: Shenzhou
• Origin: Zhejiang, China

Product Description

Product Description

Professional manufacturer best selling centrifugal machine urban waste machine decanter centrifuge

Professional manufacturer best selling centrifugal machine urban waste machine decanter centrifuge

Waste waters are produced by medium and large scale settlements such as provinces, districts, towns and villages. Such municipal (domestic) waste waters are to be treated. Processes in municipal waste water treatment plants vary depending on their area of use since they contain domestic and partially industrial waste waters and rain waters.

While the plants vary depending on the project in general they are designed to include stages such as coarse grid, fine grid, sand arrestor, oil catcher, lifting station, nitrogen phosphor elimination tank (biophosphor), aeration tanks, settlement tanks, distribution structures, sludge concentration units, digesters, sludge dewatering units, disinfection unit and odor elimination units.

SZ turbo blowers are employed in sand arrestor, aeration tank, sludge tanks and stabilization tanks of treatment plants. Nearly 50-60% of the overall power consumption of a treatment plant is used by blowers. Therefore, blowers are among the most significant and technological equipment pieces in a waste water treatment plant and they impact the plant operating costs significantly.

SZ decanters and screw presses are employed in sludge concentration and/or dewatering stage which is generally the final stage of waste water treatment plants and used for solid and liquid separation. Elimination of sludge has critical importance for ensuring continuity of the plant. Sludge elimination constitutes nearly 25-30% of waste water treatment plant investment and 45-60% of the operating costs. Selection of adequate dewatering equipment and process optimization are very important for minimization of costs.

Urban Waste Water Treatment Process
SZ Centrifuge Technologies employs decanters and screw presses for primary sludge (PS), activates sludge (WAS), extended aeration advanced activated sludge, aerobic / anaerobic digested sludge, MBR sludge produced in municipal waste water treatment plants.

Concentration Process: It is used for increasing the solid matter content of the sludge which is approximately 1-3% to the levels of 6-8%. Concentrated sludge is then fed to dewatering decanter or digester.

Dewatering Process: Decanter or screw press is used for dewatering of primary or secondary sludge.

SZ Centrifuge Technologies turbo blowers are used for supplying air needed in sand arrestor, aeration tank, sludge tanks and stabilization tanks with a polytrophic efficiency up to 84% and an extensive operating range.

 

Primary Sludge dewatering:
It is generally the sludge output from primary (pre-) sedimentation and has a grey color and slimy structure. It generally has a very strong smell. Digestion and dewatering of such sludges is easier than biological sludges.

Presedimentation tank contains settling / separable coarse particles.
Has an average solid matter content of 2-4% and volatile solid matter content of 80%. Feeding of sludge to the dewatering
equipment is performed from sludge conditioning and storage tank.
 

Activated sludge :

The matter output from the final sedimentation is usually brown and flocculated. If a darker color is observed
this is generally considered as occurrence of septic conditions. If the color is lighter, it is expected to have low settlement
characteristics due to lesser aeration. It is generally aimed to produce a sludge with an earthy smell.

WAS is produced through growth of heterotrophic microorganisms in the activated sludge process.
It has an average solid matter content of 1.0-1.5%. It has a volatile solid matter content of ~75%. Feeding of sludge to the
dewatering equipment is performed from concentration tank. Turbo blowers are used for supplying the needed air to the biological aeration tanks.

Anaerobic Digested Sludge

Anaerobic treatment is a biological treatment technology which allows recovery of energy from waste and
produces less waste that requires ultimate disposal. It is a digestion method frequently preferred in waste waters with high pollution load. It is more frequently applied in cities where industrialization is high.

When anaerobic conditions are satisfied biogas can be produced from the organic matter content of the waste water. These plants can also generate electrical energy.

Separation of organic matter content of waste water in anaerobic environment consists of two stages. Acid bacteria of organic matters are converted into organic acids, alcohol and CO2 through hydrolysis and acid fermentation.

It includes transformation of the products generated through reaction of acid bacteria to methane, CO2 and water by methanogens.
High calorie methane gas is generated with the process and it can be used as an energy source.

Extended Aeration:
Waste water is retained in the aeration tank for a longer period than other processes to ensure stabilization and digestion of sludge. Carbon (C) and nitrogen (N) elimination can be performed in the same tank in case of extended aeration activated sludge processes. Sludge age is high and it is the most commonly used advanced treatment process.

No sufficient substrate is present for microorganisms due to extended retention period of the waste water. Therefore,
microorganisms enter into endogenous respiration by competent each other and consume their own cells. This causes increase in
effluent quality. An oxygen concentration lower than 1 mg/L inhibits the nitrification bacteria. optimum pH range is 8-9 for
growth of nitrification bacteria. Mineral acidity is produced during oxidization of ammonia to nitrate. pH value of the system is decreased in case of insufficient alkalinity. Optimum dose shall be determined and lime shall be added to keep pH value constant.
Extended aeration process is equivalent to aerobic digestion process.

 

Details

3 Phase Automatic Decanter Centrifuge For Avocado Oil Extraction Machine manufacturing plant
Advantages :

1. Lower cake transportation costs due to very dry solids

2. Better recovery of nutrients due to very high separation efficiency

3. Lower fresh water consumption compared to other processes

4. Continuous and fully automatic operation

5. 24 h operating reliability

6. Optimum wear protection

7. Energy saving design

8. Easy to operate

9. Easy to maintain

10. Simple assembly/dismantling

Features :
* All parts coming into contact with the product are made of stainless steel.
* 3-phase AC motor for controlled torque starting via frequency converter
* Approximately 80 to 90 % of the oil is recovered.
* Low personnel costs due to continuous and automatic operation.
* Highest g-force for higher solids output
* Adjustable bowl speed via VFD
* Automatic adjustment of differential speed via VFD
* Two motor drive
* Belts for both primary motor and secondary motor

Specification

Model	Drum diameter mm	Inlet liquid capacity/h	Power of main/auxiliary motor Kw	Weight Kg	Dimension (max) mm
LW250	250	1-4	11/4	1200	2650*720*900
LW(F)250	250	1-4	11/4	1200	2650*720*900
LW250(W)	250	1~5	11/4	1300	2750*720*900
LW350	350	5~15	22/5.5	2000	3585*980*1238
LW(F)350	350	5~15	22/5.5	2000	3585*980*1238
LW350(W)	350	5~18	15/5.5	2200	3412*1090*950
LW(S)350	350	2~10	22/5.5	2000	3676*980*1238
LW450	450	5~20	30/11	3000	4380*1080*1360
LW(F)450	450	5~20	30/11	3000	4380*1080*1360
LW450(W)	450	5~28	30/11	3200	4380*1080*1360
LW(S)450	450	5~15	37/11	3200	4195*1080*1360
LW520	520	10~26	45/15	5000	4840*1160*1465
LW(F)520	520	10~26	45/15	5000	4840*1160*1465
LW520(W)	520	10~35	45/11	5000	4840*1160*1465

Company Profile

 

 

 

Shenzhou Centrifuge has been developing and manufacturing centrifuges for nearly 80 years, and is one of the Chinese leading manufacturer. Shenzhou Centrifuge has more experience and expertise than any other separator manufacturer when it comes to applying and using decanter centrifuge for the purpose of continuous separation.

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