Sewage sludge carbonization plant plays a vital role in managing the by-products of the sewage treatment process. Sewage sludge’s correct handling is essential to reduce pollution, improve resource utilization and promote sustainable development. Beston sewage sludge treatment plant is equipped with advanced pyrolysis technology. The machine realizes efficient conversion of sewage sludge into biochar. This recycling model of turning waste into treasure is being strongly promoted by recyclers.
Classification of Sewage Sludge
In the modern sewage treatment process, sludge is an inevitable by-product. According to the source of sewage, sewage sludge can be divided into municipal sewage sludge and industrial sewage sludge.
Municipal Sewage Sludge
Municipal sewage sludge mainly comes from urban sewage treatment plants, and the treatment objects include domestic sewage and sewage from some commercial and public facilities. Its composition is as follows:
- Organic Matter: including various biomass, such as animal and plant excrement, food residues, paper scraps and other microorganisms..
- Inorganic Matter: including sand, metal oxides and other inorganic particles.
- Nutrient Elements: including trace elements such as nitrogen, phosphorus and potassium.
Industrial Sewage Sludge
Industrial sewage sludge comes from the wastewater treatment system in the industrial production process, mainly from papermaking, food processing, printing & dyeing and other industries. Its composition is as follows:
- Organic matter: mainly comes from raw materials, auxiliary materials and their decomposition products in industrial production.
- Inorganic matter: including process additives, catalyst residues and other inorganic wastes.
- Heavy metals: such as compounds containing lead, mercury, cadmium and chromium.
What is Sewage Sludge Carbonizing Plant?
Sewage sludge carbonizing plant is a charcoal equipment designed to convert sewage sludge into biochar through a carbonization process. This process involves heating the sludge at high temperatures in an oxygen-free environment. It leads to the decomposition of organic matter and the production of biochar, a carbon-rich material. This sludge treatment plant typically consists of several key components, including feed system, carbonization reactor, gas treatment system and biochar collection system.
Whole Sewage Sludge Treatment Project Demonstration
Sewage Sludge Carbonization Reactor Demonstration
How to Convert Sewage Sludge into Biochar
Both the reduction treatment and resource utilization of sewage sludge are crucial. As an advanced solution, the sewage sludge carbonization plant converts sewage sludge into biochar through a high-temperature carbonization process. This not only reduces the sludge volume and treatment costs, but also recycles the useful components in biochar. This achieves the dual goals of environmental protection and resource recovery. Below you will learn about the working principle of the biochar machine:
Drying of Sewage Sludge
The dryer reduces the water content of sewage sludge to 15%.
01
Carbonization of Sewage sludge
After preheating for about 90 minutes, the sewage sludge enters the sludge treatment system. In the high-temperature micro-oxygen environment, the organic volatiles inside the biomass are continuously released. Finally, carbon-rich residues, biochar, are formed.
02
Sewage Sludge Biochar Collection
After the carbonization reaction is completed, the biochar passes through the discharge system. The system consists of three water-cooled screw dischargers to achieve the cooling and collection of biochar.
03
Combustible Gas Reuse
The combustible gas generated by the sewage sludge carbonization is first subjected to dust removal and condensation treatment. Subsequently, the purified combustible gas re-enters the combustion system through the pipeline. It provides a heat source for the operation of the sewage sludge carbonization plant.
04
Waste Gas Treatment
The waste gas generated by the entire reaction will pass through the dust removal tower and spray tower for dust removal and cooling. Finally, the waste gas is discharged from the chimney.
04
Comprehensive Advantages of Sewage Sludge Carbonization Machine
Reduction
- Beston sludge treatment equipment converts most of the sludge into biochar and gas through oxygen-free high-temperature treatment. This significantly reduces the amount of sludge after treatment.
- The carbonization process not only reduces the volume and weight of sewage sludge, but also releases gas while degrading organic matter. This achieves the dual benefits of waste reduction and energy recovery.
- Sustainable sludge reduction reduces landfill or incineration treatment. Therefore, this reduces the occupation pressure on landfills and greenhouse gas emissions.
Resource Utilization
- The carbonization plant integrates nutrients such as phosphorus in the sludge into biochar. At the same time, biochar itself has a good pore structure and a large surface area, which is conducive to soil water and fertilizer retention, improving soil aeration and water use efficiency. These advantages, combined with nutrients such as phosphorus rich in biochar, can significantly improve soil fertility and promote crop growth.
- Biochar can also be used as an alternative fuel for power generation or heating purposes. The heat energy generated by burning biochar can effectively utilize the organic matter in sewage sludge, while reducing dependence on traditional energy and promoting the use of renewable energy.
Harmless
- Pathogens and microorganisms may exist in sewage sludge, posing a threat to public health. The high temperature conditions of the carbonization process can effectively kill these pathogens and microorganisms. This makes sewage sludge biochar a safe and usable resource.
- Organic pollutants such as drug residues, organofluorine compounds, hormone disrupting molecules, etc. are common in sewage sludge. Sewage sludge carbonization machine can completely degrade or separate these organic pollutants. This ensures the quality and safety of biochar.
Beston Sewage Sludge Treatment Plant Parameters
Batch Type
Model: BST-J12/18/40
- No need for crusher/dryer;
- One furnace per day.
Mobile Type
Model: BST-05Pro
- Lower shipping cost;
- Convenient to install and operate.
Model | BST-J12 | BST-J18 | BST-J40 | BST-05 Pro (skid-mounted) | BST-10 | BST-30 | BST-50 |
Input Capacity | 12m³/batch | 18m³/batch | 40m³/batch | 0.3-0.5m³/h | 2-4m³/h | 7-9m³/h | 10-15m³/h |
Reactor Size | φ1900mm*L4500mm | φ1900mm*L6600mm | φ2800mm*L7100mm | φ830mm*L5500mm | φ1300mm*L14051mm | φ1700mm*L14180mm | φ2000mm*L14260mm |
Land for Equipment (L*W*H, Standard Configuration) | 9m*6m*6m | 12m*6m*7m | 15m*18m*7m | 10m*8m*3.9m | 29m*15m*5m | 30m*15m*8m | 35m*18m*9m |
Weight (Standard Configuration) | 18T | 22T | 34T | 15T | 35T | 35T | 49T |
Energy Consumption (Standard Configuration) | 11kw/h | 13.5kw/h | 25kw/h | 31kw/h | 34.7kw/h | 61.5kw/h | 116kw/h |
Working Method | Batch | Fully continuous | |||||
Feeding Requirement | / | Size: ≤20mm; moisture: ≤15%; strong liquidity | |||||
Structure | Horizontal rotation | Double barrel single hearth | Double barrel double hearth | ||||
Speed | 0-2RPM | 1-9RPM | |||||
Control Method | Control by buttons | PLC control | |||||
Reactor Material | Q245R | Q245+310S | |||||
Pressure | Micro negative pressure | ||||||
Heating Material | Diesel, natural gas, heavy oil, biomass, etc. | ||||||
Heating Method | Direct heating | ||||||
Noise (dB) | ≤80 | ||||||
Condenser | Circulating water cooling | ||||||
Rotation Method | External gear rotation |
Technical Advantage of Beston Sewage Sludge Carbonization Plant
Safety Design
- Key components are equipped with pressure and temperature detection feedback. This enables real-time monitoring of key parts and timely detection of abnormalities.
- The reaction area adopts a new structure and high-temperature resistant materials. This enhances the stability and safety of the reaction area.
- The whole machine adopts a three-layer sealing design. This provides multiple protections to prevent leakage accidents.
- Electrical faults trigger the PLC electrical cabinet alarm device. This can detect electrical problems in time and avoid safety hazards.
Energy-saving Design
- Through continuous operation, the energy loss caused by startup and shutdown is reduced.
- Biochar reactor adopts a double-layer heating structure. The outer layer dries the material, and the inner layer carbonizes the material. This can grade the heat and avoid waste.
- After being treated, the exhaust gas can be used as a heat source for drying materials. This reduces fuel consumption.
- The whole machine adopts an intelligent control system, which can adjust the operating frequency of the equipment according to actual needs and optimize energy consumption performance.
Eco-friendly Design
- Discharge system realizes automatic water cooling and dust-free slag discharge functions. This makes the machine run efficiently and cleanly.
- The sludge management system adopts three-stage sedimentation technology to treat wastewater. This ensures that the water quality meets the discharge standards.
- Dust removal system adopts activated carbon and ceramic ring adsorption technology. This effectively removes dust impurities.
- High-end exhaust gas treatment system is optional. The exhaust gas treated by this system can reach EU emission standards.
Beston Group: One-Stop Option for Sewage Sludge Disposal
Beston Group assists global customers in establishing sewage sludge treatment projects. Our top-notch equipment and comprehensive services have attracted a growing number of partners. Beyond sludge treatment facility, Beston Group offers recycling solutions for wood, coconut shells, rice husks, palm kernel shells, and other types of biomass. Here are some of our successful cases for your reference.
Become Partner with Beston Group
Sewage sludge carbonization plant represents a significant advancement in sustainable waste management. By converting sewage sludge into biochar, it addresses key environmental challenges such as waste reduction, resource recovery and pollution control. As municipalities and industry seek greener solutions, sewage sludge treatment plant is a key solution for creating a cleaner, more sustainable future. Follow Beston Group on Facebook for more recycling information.