Activated Sludge uses beneficial microorganisms to treat wastewater for both industrial and municipal applications. This involves aeration, biodegradation, separation, and recirculation.
Wastewater is mixed with activated sludge in an aeration tank, where air is supplied to support microbial activity. The mixture then flows to a clarifier, where the sludge settles and the treated water is separated. A portion of the sludge is recycled back to the aeration tank, while the excess is removed for further processing.
Efficient Organic Matter Removal
Microorganisms consume and break down pollutants, reducing biological oxygen demand (BOD)
Nutrient Reduction
Helps remove nitrogen and phosphorus through biological processes, preventing eutrophication
Improved Solids Separation
Produces settleable biomass that can be separated in secondary clarifiers for clearer effluent
Adaptable to Varying Loads
Can handle fluctuations in flow and pollutant concentrations effectively
Supports Water Reuse
Generates high-quality treated water suitable for irrigation, industrial use, or safe discharge
Cost-Effective
Uses naturally occurring microbes, reducing the need for chemical treatment
Scalable Design
Applicable for small commnuities to large municipal plants
Activated sludge systems designed for California treatment facilities fully comply with state wastewater regulations and efflient discharge standards. These systems are proven and adaptable to handle a wide range of flow conditions effectively. They reduce pathogens, soluds, and nutrients to protect public health and the environment. Additionally, they can be customized to ehance nutrient removal, improve energy effiency and support water reuse initiatives.
Reliable treatment for small, remote, or off-grid communinities.
Handles high-strength wastewater from production and cleaning operations.
Supports compliance by treating complex, variable-strength industrial flows.
Used at schools, prisons, and healthcare centers for consistent effluent quality.
Common in small to mid-sized municipal systems with tight effluent limits.
Compact and efficient treatment for seasonal or fluctuating populations.
Tailored for organic-rich wastewater with low operational impact.
Activated Sludge sytsems have advanced with several innovative configurations to boost efficiency, adaptability, and treatment performance. Common variations include:
Extended Aeration
Uses longer aeration times to stabilize sludge, reduce odors, and eliminate the need for separate digestion
Sequencing Batch Reactors (SBRs)
Treat wastewater in time batches within a single tank, allowing precise control and flexibility for variable flows and compact sites
Membrane Bioreactors (MBRs)
Combine biological treatment with membrane filtration for high-quality effluent that meets strict discharge and reuse standards
Package Plants
Modular, compact systems ideal for small to mid-size facilities or remote locations, offering easy installation and operation
Nviro designs and supports activated sludge systems tailored for municipal, industrial, and decentralized wastewater applications. Our solutions provide reliable BOD, TSS, and nutrient reduction, optimized for performance, ease of operation, and regulatory compliance.
Start with a no-obligation consultation. Whether you’re upgrading, expanding, or refining, we’ll guide you in making informed decisions to power your operation’s success.