Advanced Activated Sludge Process (AASP)


At Spans Envirotech Pvt. Ltd., we leverage the Advanced Activated Sludge Process (AASP) to revolutionize wastewater treatment. Our team of experts designs and implements tailored AASP systems that deliver superior treatment efficiency, reduced operational costs, and compliance with stringent environmental regulations.
Our Expertise
With extensive experience and specialised knowledge, we offer customised wastewater treatment solutions using the Advanced Activated Sludge Process across diverse industries, including food and beverage, pulp and paper, chemical processing, and municipal wastewater treatment. Our solutions are designed to address specific challenges, optimise treatment performance, and promote sustainability.
What is the Advanced Activated Sludge Process (AASP)?
The Advanced Activated Sludge Process (AASP) is an enhanced version of the conventional activated sludge process, incorporating advanced process control, nutrient removal techniques, and innovative design features. AASP systems utilize aerobic biological treatment to break down organic pollutants and incorporate additional processes to optimize nutrient removal, improve sludge settling, and reduce energy consumption.

Benefits of Advanced Activated Sludge Process

Efficient Nutrient Removal: AASP systems are designed to efficiently remove nutrients such as nitrogen and phosphorus from wastewater, reducing the environmental impact of nutrient-rich discharges and promoting water quality improvement.
Advanced Process Control: Utilizing state-of-the-art process control strategies, AASP systems optimize treatment performance, minimize energy consumption, and reduce operational costs by ensuring optimal process conditions and resource utilization.
Enhanced Sludge Management: Advanced sludge management techniques in AASP systems improve sludge settling characteristics, reduce sludge production, and enhance overall system reliability and stability.
Flexibility: MBR systems can be easily customized and scaled to accommodate varying flow rates, contaminant loads, and treatment objectives, providing flexibility and adaptability to meet changing wastewater treatment needs effectively.
Where Can AASP Be Used?

Food and Beverage Industry:
AASP technology offers robust and reliable treatment solutions for wastewater generated from food and beverage production processes, effectively removing organic pollutants, nutrients, and other contaminants to ensure compliance with environmental regulations and promote sustainable practices.

Pulp and Paper Industry:
AASP systems provide efficient wastewater treatment solutions for the pulp and paper industry, handling diverse wastewater streams containing organic compounds, solids, and chemicals, while minimizing environmental impact and ensuring regulatory compliance.

Chemical Processing Industry:
AASP technology is well-suited for treating wastewater from chemical processing plants, effectively removing hazardous substances, toxic compounds, and heavy metals to protect the environment and safeguard public health.
How Does AASP Work?


Aerobic Biological Treatment:
Wastewater is aerated in the presence of activated sludge, allowing aerobic microorganisms to metabolize and break down organic contaminants, converting them into simpler and less harmful substances.
Nutrient Removal:
Advanced nutrient removal techniques, such as biological nutrient removal (BNR) or enhanced biological phosphorus removal (EBPR), are employed to efficiently remove nitrogen and phosphorus from the wastewater, reducing nutrient concentrations and minimizing environmental impact.


Advanced Process Control and Optimization:
Utilising state-of-the-art process control strategies and innovative design features, AASP systems optimise treatment performance, minimise energy consumption, and reduce operational costs by ensuring optimal process conditions and resource utilisation.
Enhanced Sludge Management:
Advanced sludge management techniques, such as improved sludge settling and dewatering, reduce sludge production, enhance sludge quality, and improve overall system reliability and stability.
Additional Information:


Optimized Solutions: Our AASP systems are designed to meet the specific needs and requirements of each client and application, providing optimized solutions that improve treatment efficiency, enhance water quality, and lower operational costs.
Integrated Resource Recovery: In addition to wastewater treatment, our comprehensive solutions encompass technology, engineering, and investments to establish “waste to value” facilities, maximizing energy and resource recovery from any waste stream and advancing towards a circular economy and a zero waste future.