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Complete solutions for ammonium nitrate chemical plant wastewater treatment and resource recovery
6m³/h Ammonium Nitrate Condensate Treatment Unit
PH adjustment + electrodialysis process for efficient ammonium nitrate recovery
Technical Specifications
| Processing Capacity | 6-8 m³/h |
| Inlet Ammonium Nitrate Content | ≤3 g/L (ammonium nitrate content) |
| Effluent Ammonia Nitrogen | ≤5 mg/L |
| Concentrate Concentration | 5%-12% |
| Recovery Rate | ≥95% |
| Energy Consumption | 5.1 kWh/ton water |
| Control Method | Fully automatic PLC control |
Process Flow
- •Raw water collection → Plate heat exchanger cooling
- •PH adjustment system (automatic acid/alkali dosing)
- •Precision filter removes suspended solids
- •Electrodialysis concentration system (anion/cation exchange membranes)
- •Diluted water meets discharge standards or reuse
- •Concentrated liquid enters subsequent crystallization process
Core Equipment
- •Concentration electrodialysis system (8 units, 250 membrane pairs)
- •PH adjustment tank and automatic dosing system
- •Plate heat exchanger (titanium material)
- •Precision filter (5μm accuracy)
- •PLC automation control system
- •Online monitoring instruments (pH, conductivity, flow rate)
Equipment Advantages
- •Specialized ion exchange membranes with strong anti-fouling ability and long service life
- •DC electric field drive with low energy consumption (only 5.1kWh/ton water)
- •Continuous operation with high automation level, reducing manual intervention
- •Ammonium nitrate recovery rate ≥95% with significant economic benefits
- •Effluent ammonia nitrogen ≤5mg/L, meeting GB 8978-1996 Class I discharge standards
- •Modular design for easy expansion and maintenance
Economic Benefit Analysis
Annual Recovery Income
853,200 yuan/year
Operating Cost
2.7 yuan/ton water
Payback Period
Approximately 1.5 years
Multi-Stage Evaporation Concentration Equipment (MVR)
MVR mechanical vapor recompression technology with significant energy saving
Technical Specifications
| Processing Capacity | 200-3000 tons/day |
| Energy Saving Effect | Energy saving 60-70% |
| Material | Titanium/Duplex stainless steel |
| Control Method | DCS centralized control |
Equipment Advantages
- •MVR technology significantly reduces energy consumption
- •Corrosion-resistant materials with long service life
- •Intelligent control system for easy operation
- •Small footprint with flexible installation
Ammonium Nitrate Crystallization Recovery Unit
High-purity ammonium nitrate product recovery from wastewater
Technical Specifications
| Processing Capacity | 100-2000 tons/year |
| Product Purity | ≥99.5% |
| Recovery Rate | ≥95% |
| Product Grade | Industrial/Agricultural grade |
Equipment Advantages
- •High recovery rate with significant economic benefits
- •High product purity with great market value
- •Continuous production with high automation level
- •Mature process with reliable operation
Ion Exchange Resin Recovery System
Selective adsorption recovery of ammonium nitrate for low-concentration wastewater
Technical Specifications
| Processing Capacity | 50-1000 tons/day |
| Applicable Concentration | Applicable 5-50g/L |
| Resin Life | 3-5 years |
| Regeneration Method | Automatic regeneration cycle |
Equipment Advantages
- •Suitable for low-concentration wastewater treatment
- •Long resin life with extended replacement cycle
- •Automatic regeneration reducing labor
- •Good effluent quality suitable for reuse
Precious Metal Recycler Installation
Install precious metal recycler between tail gas reheater and economizer to recover platinum, rhodium, and palladium carried by NOx gas
Technical Specifications
| Initial Pressure Drop | ≤1.0 kPa |
| Max Pressure Drop | <3 kPa |
| Temperature Resistance | ≤400℃ |
| Applicable Plants | Medium-pressure, Double-pressure, High-pressure dilute nitric acid plants |
| Load Range | 60%-110% |
| Service Life | ≥10 years under normal design conditions |
Cooperation Modes
Buyout Model
Client purchases the recycler; we supply the first set of filter cartridges. Future spare parts provided by us to protect proprietary technology.
Revenue-sharing Model
We supply recycler and replacement filters free of charge. Recovered precious metals are shared between both parties with negotiable profit-sharing ratio.
Equipment Advantages
- •Recovers platinum, rhodium, and palladium carried out by NOx gas
- •Low initial pressure drop (≤1.0 kPa) minimizes impact on plant operation
- •Service life ≥10 years ensures long-term reliability
- •Compatible with various nitric acid production methods
- •Significant economic returns from recovered precious metals
- •Does not affect stable operation of nitric acid plant
Protective Cleaning of Ammonia Burner-Waste Heat Boiler
Professional cleaning service for ammonia burner, waste heat boiler, and tail gas reheater to enhance heat transfer efficiency and recover precious metal catalysts
Technical Specifications
| Cleaning Scope | Ammonia burner, waste heat boiler, tail gas reheater, and related pipelines |
| Post-Cleaning Test | Pressure testing after cleaning |
| Quality Assurance | Quality assurance agreement signed to ensure no damage to heat exchange tubes |
Service Purposes
- •Enhance heat transfer efficiency
- •Improve heat recovery rate
- •Increase by-product steam generation
- •Recover lost precious metal catalyst (platinum, rhodium, palladium) adhered to heat exchange tube surfaces
Cooperation Modes
Split-mode Processing
Residual materials containing precious metals processed through split-mode arrangement.
Labor Dispatch Mode
Alternative processing method for residual precious metal materials.
Equipment Advantages
- •Professional cleaning team with extensive experience
- •Improves equipment performance and extends service life
- •Recovers valuable precious metals adhered to heat exchange tubes
- •Quality guarantee with no damage to equipment
- •Reduces operational costs through improved efficiency
- •Avoids excessive cleaning that could damage waste heat boiler heat exchange coils
Ammonia Burner-Waste Heat Boiler Technical Revamp
Technical upgrades to ammonia burner-waste heat boiler to solve operational challenges and deliver significant economic benefits
Technical Specifications
| Component Role | One of three core components in nitric acid plant |
| Upgrade Focus | Ammonia burner with waste heat boilers |
| Importance | Critical for long-cycle, safe, economical, and stable operation |
Problems Solved
- •Low ammonia oxidation efficiency
- •High ammonia consumption
- •Low acid production capacity
- •Low self-generated steam volume
- •Frequent heat exchanger tube ruptures
Equipment Advantages
- •Leverages over two decades of expertise in nitric acid industry
- •Ensures long-term, safe, economical, and stable operation
- •Delivers significant economic benefits to clients
- •Comprehensive technical solution covering design to implementation
- •Proven track record with multiple successful projects
- •Advanced technology with cost-effective investment
25T/h Dual-Stage RO + EDI Demineralization System
Complete demineralization solution with dual-stage reverse osmosis and EDI for ultra-pure water production
Technical Specifications
| Processing Capacity | 25 m³/h |
| First-Stage RO Capacity | 30 m³/h (75% recovery rate) |
| Second-Stage RO Capacity | 28 m³/h (≥85% recovery rate) |
| EDI Output | 25 m³/h |
| Conductivity | ≤0.1 μS/cm (25°C) |
| Silica Content | <20 μg/L |
| Total Hardness | ≤2.0 μmol/L |
| Chloride Content | <1 mg/L |
| Control Method | Fully automatic PLC control with online monitoring |
Process Flow
- •Raw water → Raw water tank → Raw water pump → Heat exchanger
- •Multi-media filter → Activated carbon filter
- •First-stage security filter → First-stage high-pressure pump → First-stage RO
- •Intermediate water tank → Intermediate water pump
- •Second-stage security filter → Second-stage high-pressure pump → Second-stage RO
- •RO product water tank → EDI feed pump → EDI security filter → EDI system
- •Desalinated water tank → To usage point
Core Equipment
- •Pre-treatment: Multi-media filter (Φ2500mm), Activated carbon filter (Φ2500mm)
- •Plate heat exchanger with temperature control (40m³/h capacity)
- •First-stage RO: 36 anti-fouling 8040 membrane elements
- •Second-stage RO: 30 standard 8040 membrane elements
- •EDI system: 5 modules (5m³/h each)
- •Chemical dosing systems: Flocculant, disinfectant, antiscalant, reducing agent, alkali
- •CIP cleaning system for RO/EDI maintenance
- •Online monitoring: Conductivity, ORP, pH, flow meters, pressure gauges
Application Scenarios
- •Power plant boiler feed water
- •Electronics industry ultra-pure water
- •Pharmaceutical manufacturing
- •Chemical process water
- •Laboratory high-purity water
Equipment Advantages
- •Dual-stage RO ensures high demineralization rate (≥98% first year, ≥97% third year)
- •EDI technology produces ultra-pure water without chemical regeneration
- •Energy-efficient design with optimized pump selection and variable frequency drives
- •Modular design allows easy expansion and maintenance
- •Comprehensive pre-treatment protects membranes from fouling and scaling
- •Automated CIP system extends membrane life and maintains performance
- •Meets strict water quality standards for industrial applications