Solid Waste Resource Recovery Production Lines
Different waste streams vary significantly in composition, moisture content, heating value, ash content, oil content and potential value after recovery.
For this reason, the first step in a solid waste resource recovery project is not selecting a machine model. It is determining:
- What are the characteristics of the feedstock?
- Which recovery or conversion process is technically suitable?
- What products or forms of energy should the project generate?
- How should the production, energy and environmental systems be matched?
- How can the plant achieve stable long-term operation?
Meibao Industrial combines pyrolysis, incineration and co-incineration, biological conversion, chemical conversion, resource separation and energy recovery technologies to develop a complete recovery route for each project.
Overall Solution Framework
A coordinated production system that turns waste streams into recoverable products and energy.
The objective is to extend waste treatment beyond disposal and create value through resource recovery, product manufacturing and integrated energy utilization.
Seven Turnkey Solid Waste Resource Recovery Production Lines
Each line is developed around the feedstock characteristics and the target recovered products or energy.
Biomass Pyrolysis Production Line
Designed for crop straw, sawdust, branches, bamboo and wood residues, forestry waste and other suitable biomass feedstocks, this continuous pyrolysis line converts biomass into char products, pyrolysis gas, pyrolysis oil and usable heat.
- Biochar, barbecue charcoal and other char products
- Pyrolysis gas
- Pyrolysis oil and related by-products
- Recoverable heat
Combustible gas generated during production can be returned to the heating system, subject to the process design, reducing external fuel demand and improving internal energy utilization.
- Crop straw
- Sawdust
- Branches
- Bamboo and wood residues
- Forestry waste
- Other suitable biomass materials
The production line is configured around feedstock size, moisture content, required processing capacity and target char product.
Oily Sludge Pyrolysis Production Line
This line is designed for oily sludge generated during oil extraction, refining, storage, transportation and related industrial processes. Pretreatment, dewatering or drying, continuous pyrolysis and oil-gas recovery are integrated to reduce sludge volume and recover usable oil and gas.
- Recovered oil
- Recovery and utilization of combustible gas
- Heat and steam utilization
- Oily sludge volume reduction
- Further utilization of solid residues
Depending on composition testing and local regulations, treated solid residues may be evaluated for land restoration or backfilling, use in building materials, delivery to brick plants or other compliant recovery routes.
- Refinery sludge
- Tank-bottom sludge
- Oily sludge
- Oil-containing solid waste from petroleum operations
- Other oil-containing waste suitable for pyrolysis
The system is engineered around feedstock moisture, oil content, impurity composition and required processing capacity.
Waste Tire Pyrolysis Production Line
This production line recovers value from waste tires through pretreatment, continuous pyrolysis and product separation, converting the feedstock into fuel oil, carbon-black-type products, steel wire and combustible gas.
- Fuel oil
- Carbon-black-type products
- Steel wire
- Combustible gas
Combustible gas is preferentially reused as a heat source for the pyrolysis system. Subject to the project energy balance, excess gas may also support steam generation or other energy-utilization systems.
The line can be customized around tire form, required processing capacity, product requirements and automation level.
Organic Waste to Bio-Fertilizer Production Line
This line is designed for food waste, kitchen waste, livestock and poultry manure, agricultural organic waste and selected organic residues from food processing. Through pretreatment, conditioning, formulation, fermentation and post-treatment, the waste is converted into fertilizer products.
The process supports organic-waste volume reduction and circular resource utilization.
- Feedstock reception system
- Sorting and crushing system
- Dewatering and conditioning system
- Formulation and dosing system
- Fermentation system
- Curing system
- Finished-product processing system
- Odor-control system
- Automatic control system
The production line is configured around feedstock composition, moisture content, processing capacity and final fertilizer requirements.
Waste Oil to Biodiesel Production Line
Designed for used cooking oil, catering waste oil, waste edible vegetable oil and waste oil from food processing, this production line integrates feedstock purification, pretreatment, reaction, separation and refining to produce biodiesel.
- Feedstock source
- Acid value
- Moisture content
- Impurity composition
- Processing capacity
- Finished-product requirements
- Automation level
- Waste-oil reception and storage system
- Filtration and impurity-removal system
- Dehydration and feedstock-pretreatment system
- Reaction system
- Separation system
- Biodiesel refining system
- By-product treatment system
- Finished-product storage and transfer system
- Automatic control system
Waste Oil Treatment → Resource Conversion → Biodiesel Production.
Municipal Solid Waste & Sewage Sludge Co-Incineration Waste-to-Energy Production Line
For centralized treatment of municipal solid waste and municipal sewage sludge, Meibao Industrial can develop a shared core incineration and waste-heat utilization system that processes both waste streams and recovers energy. This shared-system configuration is one of the key technical characteristics of the solution.
Conventional projects may construct separate systems for municipal solid waste and sewage sludge. Subject to project conditions, Meibao's solution can introduce both streams into one core incineration production system.
- One shared core system
- Two municipal waste streams
- Flexible adjustment of the co-firing ratio
- Unified waste-heat recovery
- Unified environmental treatment
- Mode A | Municipal Solid Waste Only - Suitable when sewage-sludge supply is insufficient or when a project phase is intended to process only municipal solid waste.
- Mode B | Municipal Solid Waste + Sewage Sludge - The feeding ratio is adjusted around the actual properties and availability of both waste streams to support stable co-incineration.
- 01 | One System for Two Waste Streams - Where design and operating conditions permit, municipal solid waste and sewage sludge can share one core incineration production system, improving overall equipment utilization.
- 02 | Flexible Co-Firing Ratio - The feeding ratio can be adjusted around supply, moisture content, as-received heating value and actual combustion conditions, improving feedstock adaptability.
- 03 | Integrated Municipal Waste Treatment - The system expands a conventional municipal-waste incineration project into integrated energy recovery from municipal solid waste and sewage sludge.
- 04 | Unified Waste-Heat Recovery - High-temperature flue gas from co-incineration enters a shared waste heat boiler to generate steam for steam turbine power generation, industrial steam supply and other thermal-energy applications.
- 05 | Unified Environmental and Resource-Recovery Systems - The project can integrate flue-gas cleaning, dust control, return-to-furnace incineration of odor-laden air, bottom-ash treatment, metal recovery and other by-product recovery systems.
- Feedstock Reception and Feeding - waste weighing and unloading, fully enclosed storage pit, waste crane and feeding, sludge reception/storage and metered feeding.
- Core Incineration - coordinated feeding, incineration, odor-laden air return-to-furnace, combustion control and bottom-ash discharge.
- Waste Heat and Power Generation - waste heat boiler, deionized-water system, boiler feedwater, steam system and steam turbine generator.
- Environmental Treatment and Resource Recovery - flue-gas cleaning, dust control, bottom-ash treatment, metal recovery and by-product resource recovery.
- Automatic Control - PLC and/or DCS monitoring of feeding rates, feeding ratio, furnace temperature and pressure, flue-gas, boiler feedwater, steam and power-generation parameters, and equipment status.
Aluminum Dross Resource Recovery Production Line
For primary aluminum dross, secondary aluminum dross and aluminum slag generated during aluminum processing and smelting, Meibao Industrial can develop a staged recovery and downstream-processing line based on chemical composition, metallic aluminum content and target resource products. The project can extend from metallic-aluminum recovery to deeper utilization of secondary aluminum dross and production of aluminum-based products.
Main objectives: recover metallic aluminum, classify aluminum-dross material, improve aluminum-resource utilization and prepare the material for deeper processing of secondary dross.
After metallic aluminum has been recovered, the resulting secondary aluminum dross can enter different processing routes depending on its chemical composition, locally available auxiliary raw materials and the target product market.
- Polyaluminum chloride
- Calcium aluminate
- Sodium aluminate
- Aluminum sulfate
- Other aluminum-based resource products
Depending on actual composition, local regulations and utilization conditions, selected residues may be evaluated for use as raw materials in cement or other building-material applications.
Seven Feedstock Categories and Seven Recovery Routes
Each waste stream is matched to a dedicated recovery line and recovered products.
| Feedstock Category | Production Line | Main Products |
|---|---|---|
| Biomass Waste | Biomass Pyrolysis Line | Biochar, pyrolysis gas, pyrolysis oil and heat |
| Oily Sludge | Oily Sludge Pyrolysis Line | Recovered oil, combustible gas, steam and solid-resource utilization |
| Waste Tires | Waste Tire Pyrolysis Line | Fuel oil, carbon products, steel wire and combustible gas |
| Food and Organic Waste | Bio-Fertilizer Production Line | Bio-fertilizer and related fertilizer products |
| Waste Oil | Biodiesel Production Line | Biodiesel and related by-products |
| Municipal Solid Waste + Sewage Sludge | Co-Incineration Waste-to-Energy Line | Steam, electricity, metals and bottom-ash utilization |
| Aluminum Dross / Slag | Aluminum Dross Resource Recovery Line | Metallic aluminum, aluminum-based products and further utilization |
What Makes Up a Complete Solid Waste Resource Recovery Line?
A solid waste resource recovery line is not simply a collection of individual machines. It is a complete production system designed around feedstock characteristics and product objectives.
01 Feedstock Reception and Storage
- Reception
- Unloading
- Storage
- Feeding
- Conveying
02 Raw Material Pretreatment
- Sorting
- Crushing
- Grinding
- Screening
- Dewatering
- Drying
- Filtration
- Impurity removal
- Formulation and dosing
- Conditioning
03 Core Resource Conversion
- Pyrolysis
- Incineration and co-incineration
- Biological fermentation
- Chemical conversion
- Separation and resource recovery
04 Product Recovery and Post-Treatment
- Oil recovery
- Biodiesel refining
- Char-product treatment
- Bio-fertilizer post-treatment
- Metallic aluminum recovery
- Production of aluminum-based products
- Recovery of metals and solid by-products
05 Integrated Energy Utilization
- Combustible gas
- High-temperature flue gas
- Steam
- Waste heat
Recovered energy may support internal circulation or external energy output, depending on the project design.
06 Environmental Treatment
- Flue-gas cleaning
- Dust control
- Off-gas treatment
- Waste-gas incineration
- Odor control
- Wastewater treatment
- Solid-residue treatment
07 Automatic Control
PLC and/or DCS systems can provide centralized monitoring of:
- Temperature
- Pressure
- Flow
- Feeding rate
- Dosing or co-firing ratio
- Liquid level
- Flue-gas parameters
- Steam parameters
- Equipment operating status
Analyze the Feedstock Before Designing the Production Line
No two solid waste resource recovery projects are exactly the same. Before a project begins, Meibao typically evaluates four groups of information.
01 | Feedstock Parameters
- Feedstock type and source
- Material composition
- Moisture content
- Ash content
- As-received heating value
- Oil content
- Impurities
- Laboratory or inspection reports
02 | Processing Capacity
- Tonnes per hour
- Tonnes per day
- Tonnes per year
- Daily operating hours
- Annual operating days
03 | Target Products
- Fuel oil / pyrolysis oil
- Biodiesel
- Biochar
- Carbon-black-type products
- Bio-fertilizer
- Steam
- Electricity
- Metallic aluminum
- Polyaluminum chloride
- Calcium aluminate
- Sodium aluminate
- Aluminum sulfate
04 | Project-Site Conditions
- Feedstock supply
- Availability of auxiliary raw materials
- Fuel conditions
- Water and electricity supply
- Land and building conditions
- Climate conditions
- Environmental requirements
- Target-product market
- Local conditions for resource utilization
These inputs are used to determine the process route, equipment specifications and overall production-line configuration.
Project Implementation Process
From feedstock analysis to stable commercial operation.
Project Requirements and Feedstock Analysis
Confirm the feedstock type, feedstock parameters, processing capacity, target products and project location.
Process Route Design
Select a suitable resource-recovery route based on feedstock properties and complete the main material and energy-system analysis. For municipal solid waste and sewage-sludge projects, the assessment focuses on capacity, moisture, heating value and composition of both streams. For aluminum-dross projects, it focuses on dross type, metallic-aluminum content, composition, auxiliary materials and target products.
Plant and Production-Line Planning
Plan the feedstock area, production area, energy systems, environmental systems, finished-product area, logistics routes and equipment layout.
Equipment Design and Manufacturing
Complete the engineering and manufacturing of core equipment, thermal-processing equipment, storage and conveying equipment and auxiliary systems.
Installation and System Integration
Integrate the production, energy, environmental and automatic-control systems so that they operate as one coordinated plant.
System Commissioning and Trial Production
Adjust and optimize the system around the actual feedstock, including feeding rate, dosing or co-firing ratio, temperature, pressure, flow, energy balance and product quality.
Training and Commercial Operation
Complete operator and maintenance training and support the transition of the entire production line into stable operation.
Project Service Scope
Depending on the project requirements, Meibao Industrial can provide:
- Early-stage technical consultation
- Feedstock and process analysis
- Process-route design
- Turnkey production-line planning
- Plant and equipment-layout recommendations
- Core-equipment design and manufacturing
- Feedstock storage and conveying systems
- Thermal-processing and energy-utilization systems
- Product recovery and post-treatment systems
- Environmental treatment systems
- Automatic control systems
- Installation guidance
- System commissioning
- Trial production
- Operator training
- Ongoing technical support
The final equipment supply and engineering-service scope is defined according to the requirements of each project.
Why Choose Meibao Industrial?
Integrated capability from technical solution to plant start-up.
01 | Multiple Recovery Routes
- Pyrolysis-based resource recovery
- Organic-waste recovery
- Biofuel production
- Integrated energy recovery from municipal solid waste
- Inorganic solid-waste resource recovery
02 | Shared-System MSW Treatment
A key feature of the municipal-waste solution is the ability, subject to project conditions, to process municipal solid waste and sewage sludge in one core incineration and waste-heat utilization system.
One Core System + Two Municipal Waste Streams + Unified Energy Recovery
03 | Multi-Stage Aluminum Dross
- Polyaluminum chloride
- Calcium aluminate
- Sodium aluminate
- Aluminum sulfate
- Other aluminum-based products
04 | Complete Turnkey Capability
Meibao's focus is not limited to individual machines. The objective is to integrate:
05 | Thermal-Processing Experience
Experience in industrial furnaces, thermal-processing equipment, drying systems and resource utilization supports the engineering of core pyrolysis, incineration and waste-heat recovery processes.
06 | Solution to Plant Start-Up
One Core System for Municipal Solid Waste and Sewage Sludge
Where design and operating conditions permit, municipal solid waste and sewage sludge can share one core incineration production system, improving overall equipment utilization.
The feeding ratio can be adjusted around actual feedstock conditions and operating status, enabling one production system to accommodate different feedstock combinations and supporting stable co-incineration.
High-temperature flue gas from co-incineration enters a shared waste heat boiler to generate steam for power generation, industrial steam supply and other thermal-energy applications.
Turn Waste into New Resource Value
Different waste streams require different recovery processes. From raw material pretreatment and core conversion to product recovery, energy utilization and environmental treatment, Meibao Industrial develops a complete solid waste resource-recovery production system around actual project conditions.
For municipal solid waste and sewage sludge, one core system can support co-incineration with flexible feeding-ratio adjustment according to feedstock properties and operating conditions.
For aluminum dross, the recovery route can extend from metallic-aluminum recovery to deeper processing of secondary dross and production of aluminum-based products.
What Information Is Required to Start a Project?
To support a faster preliminary technical assessment, please provide as much of the following information as possible.
Tell us:
Feedstock Type + Feedstock Parameters + Processing Capacity + Target Products + Project Location.
Initial Project Information
For MSW & Sewage Sludge co-incineration: provide separate data for each waste stream - daily treatment capacity, moisture content, as-received heating value, main composition, and sludge source where applicable.
For Aluminum-Dross recovery: include primary or secondary dross type, daily or annual capacity, metallic-aluminum content, main chemical composition, lab reports, locally available auxiliary raw materials and desired downstream products.