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WHIRLER CENTRIFUGALS PVT. LTD.
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Commercial Grid Injection Food Waste CSTR (Continuous Stirred Tank Reactor) High-Yield Anaerobic Digester Plant

Commercial Grid Injection Food Waste CSTR (Continuous Stirred Tank Reactor) High-Yield Anaerobic Digester Plant Specification

Production Capacity
Biomethane output up to 97% CH4 purity, 250-5000 Nm3/day

Accessories
Feed hopper, mixers, biogas collector, PSA/membrane separation system, compressors, fertilizer drying unit

Automation Grade
Fully Automatic

Efficiency (%)
Up to 85% feedstock conversion efficiency

Driven Type
Motor-driven (agitators, pumps)

Installation Guideline
On-site civil foundation required, electrical and gas grid interface setup

Plastic Processed
Not applicable - designed for organic/food waste only

Model No
CSTR1000-BM or custom

Temperature Range
35-55C (mesophilic/thermophilic modes)

Frequency
50/60 Hz

Motor Power
7.5-30 kW per stirrer (multiple stirrers per tank)

Speed
Stirrers: 20-60 rpm

Usage & Applications
Grid bio-methane injection, vehicle fuel, fertilizer production, renewable energy projects

Type
Continuous Stirred Tank Reactor (CSTR) High-Yield Anaerobic Digester Plant

Material
Corrosion-resistant steel, reinforced concrete (reactor structure), high-density polymer (gas holder)

Computerized
Yes

Automatic Grade
Automatic

Control System
Integrated SCADA-based monitoring system

Drive Type
Electric motor drive for stirrers and pumps

Voltage
380V/415V/440V, 3-Phase (customizable as per grid)

Power
Variable, typically 50-300 kW depending on plant size

Weight (kg)
Varies by capacity, up to 90,000 kg for large installations

Dimension (L*W*H)
Custom engineered, typical diameter 20-30m, height 6-10m

Color
Industrial green or grey, customizable exterior

Capacity
Varies: 50 m3/day to 2000 m3/day organic input

Features
High-yield biogas production, robust mixing, real-time monitoring, automated feeding, scalable design

Surface Finish
Anti-corrosive industrial coating

Power Consumption
2.5-8 kWh per m3 biogas produced

Machine Type
Commercial grid injection-ready biogas plant

Tail Gas Handling
Safe venting or reprocessing for environmental compliance

Input Feedstock Handling
Pre-treatment with grinding and size reduction

Slurry Handling
Automated digestate discharge and dewatering system

Mixing System
Multiple heavy-duty mixers for uniform slurry agitation

Emission Compliance
Design meets local and international environmental standards

Gas Treatment
PSA (Pressure Swing Adsorption) and membrane separation for CO2, H2S removal

Safety Features
Gas venting valves, emergency shutdowns, flame arrestors

Grid Connection
Compatible with commercial grid injection standards and vehicle fuel compression requirements

Insulation
Thermal insulation for climate-resilient operations

Biogas Storage Option
On-site gas holder with level and pressure control

Control Parameters
Continuous monitoring of temperature, pH, and retention time

SCADA/Data Logging
Historical data storage and remote monitoring capabilities

Digestate Management
Solid-liquid separation, drying, pelletizing for commercial fertilizer production

Commercial Grid Injection Food Waste CSTR (Continuous Stirred Tank Reactor) High-Yield Anaerobic Digester Plant Trade Information

Minimum Order Quantity
1 Number

Delivery Time
4

About Commercial Grid Injection Food Waste CSTR (Continuous Stirred Tank Reactor) High-Yield Anaerobic Digester Plant

This commercial-scale biogas plant utilizes advanced Continuous Stirred Tank Reactor (CSTR) technology to process food waste feedstocks, delivering exceptional energy yields. The high-yield anaerobic digestion system continuously mixes organic waste to optimize microbial activity and maximize biogas production.

Once generated, the raw biogas undergoes rigorous upgrading to meet pipeline-quality biomethane standards, enabling direct injection into the local natural gas grid. By converting municipal and industrial food waste into clean, renewable energy, the plant diverts organic materials from landfills, reduces greenhouse gas emissions, and supports circular economy goals.

In addition to renewable utility-grade gas, the process yields a nutrient-rich digestate that can be utilized as a high-quality organic fertilizer, successfully closing the loop on waste management while providing a reliable, sustainable source of green energy.

Advanced Feedstock Pre-Treatment

Our digester plant streamlines waste handling with industrial grinders and size-reduction equipment, ensuring optimal substrate preparation for maximum biogas output. Automated feeding and multiple mixers create a uniform slurry, delivering consistently high digestion efficiency and stable operation cycles.

Superior Gas and Digestate Management

Sophisticated PSA and membrane technology ensures thorough gas purification, while automated solid-liquid separation and pelletizing systems create high-value fertilizers. Safe tail gas handling and biogas storage options maintain environmental compliance and operational flexibility.

Intelligent Control and Monitoring

A SCADA-based integrated control system provides real-time data logging, remote access, and automated safety responses. Key parameters like temperature, pH, and retention time are continuously monitored, maximizing yield, ensuring consistency, and supporting compliance with environmental standards.

FAQ's of Commercial Grid Injection Food Waste CSTR (Continuous Stirred Tank Reactor) High-Yield Anaerobic Digester Plant:

Q: How does the CSTR anaerobic digester handle different types of food and organic waste?

A: The plant features an advanced pre-treatment system that grinds and reduces the size of incoming food waste, enhancing substrate homogenization. This approach optimizes the digestion process, making it efficient for a wide range of organic feedstocks and improving overall biogas yield.

Q: What methods are used to purify and upgrade the biogas for grid injection or vehicle fuel?

A: Biogas produced is treated using PSA (Pressure Swing Adsorption) and membrane separation. These systems efficiently remove CO2, H2S, and other impurities, resulting in biomethane with up to 97% methane content, ready for commercial grid injection or vehicle fuel compression standards.

Q: When is the digestate converted into fertilizer, and how is it processed?

A: After anaerobic digestion, digestate undergoes automated solid-liquid separation, drying, and pelletizing processes. This occurs continuously, producing high-quality commercial fertilizer that can be safely stored, transported, and applied to agricultural lands.

Q: Where can this biogas plant be installed, and what infrastructure is required?

A: The plant is custom-engineered for installation at commercial or municipal waste management sites. It requires an on-site civil foundation, electrical connections, and access to grid or vehicle fuel infrastructure. Detailed installation guidelines and technical support are provided.

Q: What are the main benefits of using this automated digester plant?

A: Key benefits include high-yield, renewable biomethane production; reduced landfill waste; reliable fertilizer generation; remote monitoring capabilities; and compliance with local and international emission standards-all contributing to environmental sustainability and operational efficiency.

Q: How does the control system ensure safe and reliable operation?

A: Integrated SCADA enables continuous monitoring of critical parameters, remote diagnostics, automated emergency shutdowns, and historical data storage. Safety features such as gas venting valves and flame arrestors further ensure reliable, risk-mitigated operations.

Q: What capacity and scalability options are available for various applications?

A: The digester plant is available in multiple sizes, processing from 50 m3/day up to 2000 m3/day of organic input, with biomethane production ranging from 250 to 5000 Nm3/day. Customizable options allow adaptation for both medium and large-scale energy or waste management projects.

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