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WHIRLER CENTRIFUGALS PVT. LTD.
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Commercial Grid Injection Agricultural Residue Floating Drum Mesophilic Anaerobic Digester Plant

Commercial Grid Injection Agricultural Residue Floating Drum Mesophilic Anaerobic Digester Plant Specification

Motor Power
7.5 kW (for primary mixing/feeding); may vary by size

Installation Guideline
Onsite installation by expert team, user/operator training included

Frequency
50/60 Hz

Usage & Applications
Agricultural residue digestion, rural electrification, biogas fuel supply, organic fertilizer production, grid power supply, composting

Accessories
Pressure gauge, safety valve, gas outlet valve, mixing tank, digestate storage tank, gas flare, gas filtration unit, grid injection interface

Model No
Grid Injection/FD/AGRIC/2024

Temperature Range
30C-40C (Mesophilic operation)

Plastic Processed
Not applicable - exclusively organic feedstocks

Driven Type
Electric (with backup options)

Speed
Mixing 30-40 rpm; drum floats and moves with gas collection

Efficiency (%)
Typically 70%-85% substrate conversion efficiency

Production Capacity
Biogas yield depends on feedstock (typically 0.4-0.6 m3/kg VS fed)

Automation Grade
Fully Automatic

Type
Floating Drum Mesophilic Anaerobic Digester Plant

Material
High-grade steel, reinforced concrete, corrosion-resistant lining

Computerized
Yes

Automatic Grade
Automatic

Control System
PLC Based Automated Control System

Drive Type
Electric Motor Driven

Voltage
380-415V AC, 3 Phase

Power
Dependent on plant size (typically 7.5-30 kW)

Weight (kg)
Custom; varies as per digester capacity and installation

Dimension (L*W*H)
Customizable as per site requirements

Color
Standard Industrial Color (Green/Blue/Grey as required)

Capacity
Customizable (from 10 m3/day to 1000 m3/day and above)

Features
Grid injection ready, automatic feed, floating drum for gas collection, mesophilic digestion, high safety and durability, remote monitoring, co-digestion capability

Machine Type
Commercial Biogas Plant

Surface Finish
Epoxy or anti-corrosive coated, smooth finish

Power Consumption
Low energy use, efficient operation (<5% of biogas output energy)

Biogas Production Method
Co-digestion of food waste, agricultural residue, and animal manure

Gas Collection System
Floating drum with water seal for safe gas storage

Permitted Contaminants
Negligible plastic/inorganic matter; feedstock pre-treatment recommended

Primary Feedstock
Agricultural residue, food waste, animal manure

Digestate Output Options
Liquid digestate (for agriculture), solid digestate (for compost)

Biogas Utilization
Cooking (gas stove), power generation (engine/CHP), grid supply

CHP Compatibility
Integrated Combined Heat & Power (CHP) unit optional for electricity

Safety Features
Biogas pressure gauge, fail-safe valves, gas trap, emergency release

Startup Time
3-6 weeks for initial inoculation depending on feedstock

Grid Injection Interface
Biomethane grid injection compatible, automated metering

Operation Mode
Continuous or batch feed options

Cover Type
Removable top cover, floating drum for gas collection

Maintenance Requirement
Routine inspection, annual maintenance, remote diagnostics

Environmental Benefits
GHG emission reduction, clean renewable energy, organic fertilizer, waste minimization

Commercial Grid Injection Agricultural Residue Floating Drum Mesophilic Anaerobic Digester Plant Trade Information

Minimum Order Quantity
1 Number

Delivery Time
4

Commercial Grid Injection Agricultural Residue Floating Drum Mesophilic Anaerobic Digester Plant About

This commercial-scale anaerobic digester plant is designed to convert agricultural residuessuch as crop waste and livestock manureinto high-quality renewable energy. Operating under stable mesophilic conditions (typically 35C40C), the plant employs a classic floating drum design. This floating gasholder automatically adjusts its volume to ensure a constant gas pressure, optimizing storage and system safety.

The harvested raw biogas is subsequently cleaned and upgraded to biomethane, meeting strict quality standards for direct commercial grid injection. By feeding renewable natural gas directly into the local pipeline network, the facility helps displace fossil fuels, reduces greenhouse gas emissions from decomposing farm waste, and provides a reliable, decentralized source of green energy. Additionally, the process yields nutrient-rich digestate, offering local farmers a high-grade organic fertilizer. This circular system exemplifies sustainable, modern agricultural waste management.

Versatile Biogas Production and Grid Injection

This digester plant is engineered for co-digestion of agricultural residues, food waste, and animal manure, providing flexibility and maximizing biogas yield. The floating drum design ensures efficient gas collection, which is suitable for cooking, power generation, or direct grid injection. Customizable capacity and compatibility with grid injection make it ideal for diverse rural and commercial energy needs.

Robust Safety and Automation Features

Built with high-grade steel, reinforced concrete, and corrosion-resistant lining, the system ensures durability and low maintenance. Safety is enhanced through integrated biogas pressure gauges, automatic fail-safe valves, gas traps, and emergency release mechanisms. The PLC-based automated control system and remote monitoring allow seamless, reliable, and user-friendly operation.

Environmental Impact and Resource Optimization

This biogas plant significantly contributes to greenhouse gas reduction by capturing methane from organic waste and converting it into clean, renewable energy. The digestate produced is a valuable organic fertilizer, supporting sustainable agriculture, while the system minimizes waste sent to landfill and supports rural electrification and local nutrient cycles.

FAQ's of Commercial Grid Injection Agricultural Residue Floating Drum Mesophilic Anaerobic Digester Plant:

Q: How does the floating drum anaerobic digester collect and store biogas safely?

A: The digester features a floating drum equipped with a water seal, which rises as biogas is produced. This setup prevents gas leaks and safely contains the biogas until needed. Integrated safety measures like pressure gauges, fail-safe valves, and gas traps further enhance secure gas storage and handling.

Q: What types of feedstock can be processed in this plant, and does it require pre-treatment?

A: The system is designed to handle agricultural residue, food waste, and animal manure. While it accommodates negligible plastic or inorganic contamination, pre-treatment (such as shredding or screening) is recommended to ensure optimal digestion and efficient operation.

Q: When can the system be expected to become operational after installation?

A: Initial inoculation and startup typically take 3-6 weeks, depending on the feedstock characteristics. During this phase, microbial populations establish themselves within the digester, ensuring stable biogas production.

Q: Where can the digestate outputs be used after processing?

A: The plant produces both liquid and solid digestate. Liquid digestate is ideally suited for direct application as fertilizer in agriculture, while the solid fraction is perfect for composting, providing a valuable soil amendment for farms or horticulture.

Q: What is the operational process and how is the plant controlled?

A: The plant operates in either continuous or batch feed modes, with a fully automated PLC-based system overseeing all processes. This ensures optimal mixing, feeding, and biogas collection. Routine inspections and annual maintenance are required, and remote diagnostics simplify monitoring and troubleshooting.

Q: How does integrating grid injection or CHP benefit users?

A: By connecting to the grid through automated biomethane metering or using the optional Combined Heat & Power (CHP) unit, users can supply renewable electricity or utilize generated heat onsite. This maximizes energy recovery and offers potential revenue streams from power sales or cost savings on energy usage.

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