Advantages and disadvantages of wastewater sludge treatment technologies in artificial sand production

Production process artificial sand Large amounts of water are required to wash the sand, which results in the formation of wastewater sludge that needs to be treated effectively. Below is an analysis of the advantages and disadvantages of current wastewater sludge treatment technologies in the artificial sand production industry.

1. Using traditional settling pond technology

System and operating principle

Traditional settling ponds use large reservoirs to allow the wastewater to settle naturally.

Specifications

• Size: 25m x 12m x 3m
• Volume: 900m³
• Treatment: 36m³ water/hour

Advantage

• Low investment cost: Easy to deploy with low initial cost.
• Simple design: No complex technology required.

Disadvantages

• Large area requirement: Not suitable for areas with limited space.
• Low water recovery rate: Causes large water loss and difficulty in controlling the quality of reused water.

2. Sludge treatment system using scraper settling tank

System and operating principle

The settling tank uses an automatic scraper system to collect sludge from the settling tank.

Specifications

• Pool diameter: 6.8m
• Capacity: 55m³
• Treatment: 130m³ water/hour

Advantage

• Efficient treatment capacity: High recirculated water volume.
• Smaller installation footprint: Space saving compared to settling ponds.

Disadvantages

• High energy and chemical consumption: Increased operating costs.
• High investment cost: Requires regular maintenance and is prone to disruption if damaged.

3. Sludge treatment system using sloped conical settling tank

System and operating principle

This state-of-the-art technology uses no moving parts, optimizing processing efficiency.

Specifications

• Integrated clean water tank, sludge treatment system with sludge discharge distance under 30m.

Advantage

• Reduce costs maintenance: No moving parts.
• High treatment efficiency: The most optimal amount of recirculated water available today.
• Low chemical consumption: Suitable for modern washing systems.

Disadvantages

• High initial investment cost: Requires large initial investment.

4. Sludge treatment after sedimentation

After being processed through the settling tanks, the sludge needs to be further processed to maximize water recovery. Some common methods include:

Sludge filter

• Dry sludge pressing, recover water for reuse.

Sludge disposal pond

• Discharge thick sludge to settle naturally, reducing pressure on the system.

Advantage

• Reduce sludge: Limit environmental pollution.
• Increase water reuse rate: Helps save resources.

Disadvantages

• Large reservoir area required: Large space is required for the effluent pond.
• High operating costs: Especially if using filter press equipment.

Nguyen Vinh - Optimal solution consulting unit

Technology selection sludge treatment in artificial sand production depends on many factors such as investment costs, treatment efficiency and area requirements. Each technology has its own advantages and disadvantages, so careful consideration is needed to choose the most suitable solution for each specific project.

Nguyen Vinh Company is committed to providing optimal solutions for sludge treatment, ensuring sustainable development in the manufacturing industry. artificial sand.

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