Anaerobic Granular Sludge

By adding anaerobic granular sludge with high specific methanogenic activity, accelerate (re)start and/or ensure the stable operation of anaerobic wastewater treatment plants.

Our anaerobic granular sludge can quickly process loads of 20-30 cubic meters.

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About Anaerobic granular sludge

Anaerobic granular sludge is used in anaerobic digesters for liquid waste streams with high chemical oxygen demand (COD). As a form of activated sludge, sludge is made of stable particles containing microorganisms. In anaerobic wastewater treatment, organic matter is converted into biogas through the continuous action of four main microbial communities. We provide high-quality anaerobic medium temperature particle booster cultures to accelerate (re)start anaerobic medium temperature wastewater treatment plants. The anaerobic booster has a high specific methane production activity and is composed of dense particles, which can be easily suppressed in the reactor system.

Anaerobic granular sludge is usually used to treat warm, high-strength industrial wastewater containing high concentrations of biodegradable organic matter. The anaerobic granular sludge process can reliably remove biochemical oxygen demand (BOD), chemical oxygen demand (COD) and total suspended solids (TSS) in wastewater.

Compared with the aerobic treatment program, the anaerobic process uses much less energy, requires fewer chemicals, and lowers the cost of sludge treatment. In addition, the biogas produced by the anaerobic process is a renewable energy source that can be used to replace fossil fuels such as oil or natural gas, or to generate electricity.

Anaerobic granular sludge is an aggregate of high-activity anaerobic bacteria formed in Treatment of organic wastewater. As a microecosystem, it is rich in various anaerobic microbial populations and have Self-balancing performance and can degrade Various organic pollutants in the original wastewater. It is used to start-up the anaerobic reactor in high concentration organic wastewater treatment system. Anaerobic granule sludge is a form of microbial immobilization, slightly heavier than water, with good settling performance and Methanogenic activity.

Specification

Application of anaerobic granular biomass

1. Start UASB, IC, EGSB, anaerobic plant. New anaerobic plants start by addition of anaerobic granular sludge, which come from other well-functioning reactors.

2. Replanting sludge and replacing sludge. Sludge of some anaerobic plant will lost or denatured, in these cases, the reactor needs to fill up the sludge, replant the sludge or even replace all the sludge. Such as paper-making wastewater, petrochemical wastewater, chemical wastewater, pharmaceutical wastewater, printing and dyeing wastewater, citric-acid wastewater, brewery wastewater, Foods wastewater, and so on.

Application industries:

papermaking, petrochemical, chemical, pharmacy, printing and dyeing, citric-acid, brewery, Foods, and so on.

Transport

Professional engineers are responsible for loading and on-site inspection to ensure that the quality and quantity meet customer needs and safe transportation requirements

The qualified sludge supply covers most of China and professional logistics services, enable us efficiently supply high-quality sludge to customers.

In recent years, we have cooperated with many Southeast Asian customers and have accumulated rich overseas sales experience.

Manufacture

More information on Anaerobic granular sludge

Anaerobic granular sludge is a complex mixture of microorganisms that forms dense, spherical aggregates, or granules. These granules range in size from 0.2 to 5 mm in diameter and are composed of a diverse range of microbial species. Anaerobic granular sludge is commonly used in anaerobic wastewater treatment systems due to its unique properties. The granular structure of the sludge allows for a high biomass concentration within a relatively small volume, which increases the efficiency of the treatment process. Additionally, the granules are able to retain microorganisms and enzymes within their structure, reducing the likelihood of washout and increasing the stability of the treatment process.

Anaerobic granular sludge is formed through a complex process that is not yet fully understood. However, it is generally accepted that the process involves a combination of physical, chemical, and biological factors. The initial step in the formation of anaerobic granular sludge is the growth and accumulation of bacterial cells. These cells begin to clump together, forming small aggregates. As the aggregates grow in size, they become more dense and compact, eventually forming the spherical granules that are characteristic of anaerobic granular sludge.

The formation of the granules is facilitated by a number of factors, including the presence of specific microbial species, the availability of nutrients, and the physical properties of the wastewater being treated. For example, the presence of certain bacteria, such as Methanosaeta spp. and Methanosarcina spp., is believed to be critical for the formation and stability of granular sludge. These bacteria are able to produce methane from acetate and other organic compounds, which helps to stabilize the granules and maintain the anaerobic conditions within the system.

The physical properties of the wastewater being treated also play a role in the formation of anaerobic granular sludge. The presence of particulate matter and other solid materials can help to promote the growth and accumulation of bacterial cells, leading to the formation of granules. Additionally, the pH, temperature, and dissolved oxygen levels of the wastewater can all affect the formation and stability of granular sludge.

Anaerobic granular sludge is an important component of anaerobic wastewater treatment systems. These systems are designed to treat wastewater in the absence of oxygen, utilizing microorganisms that can thrive in anaerobic conditions to break down organic matter and other pollutants. Anaerobic granular sludge is particularly effective in these systems due to its unique properties. The granular structure of the sludge allows for a high biomass concentration within a relatively small volume, which increases the efficiency of the treatment process. Additionally, the granules are able to retain microorganisms and enzymes within their structure, reducing the likelihood of washout and increasing the stability of the treatment process.

The use of anaerobic granular sludge in wastewater treatment has a number of advantages over other types of treatment systems. One of the main advantages is that anaerobic systems can treat wastewater with high levels of organic matter and other pollutants, which would be difficult or impossible to treat using aerobic systems. Additionally, anaerobic systems produce less sludge and require less energy than aerobic systems, making them more cost-effective and environmentally friendly.

Anaerobic granular sludge is an effective microbial community that can be used in a variety of anaerobic wastewater treatment systems. Here are a few examples:

1. Upflow Anaerobic Sludge Blanket (UASB) reactor: In a UASB reactor, wastewater flows upwards through a bed of granular sludge. The sludge settles in the bottom of the reactor, forming a dense bed that captures and digests organic material in the wastewater. Biogas (composed mainly of methane and carbon dioxide) is produced as a byproduct of the digestion process.

2. Anaerobic sequencing batch reactor (ASBR): In an ASBR, wastewater is added to a reactor containing granular sludge. The reactor is then closed, and the sludge is mixed with the wastewater to promote digestion. After a set amount of time, the reactor is emptied, and the treated water is removed.

3. Expanded granular sludge bed (EGSB) reactor: Similar to a UASB reactor, an EGSB reactor uses granular sludge to treat wastewater. However, the sludge bed is expanded to increase the contact time between the sludge and the wastewater. This results in a more efficient digestion process and higher treatment efficiency.

4. Anaerobic membrane bioreactor (AnMBR): In an AnMBR, wastewater is treated using a combination of anaerobic digestion and membrane filtration. The granular sludge is used to break down organic material in the wastewater, while a membrane filter separates the treated water from the sludge.

These are just a few examples of the many different types of anaerobic wastewater treatment systems that utilize anaerobic granular sludge. Each system has its own advantages and disadvantages, and the choice of system depends on factors such as the type and volume of wastewater being treated, the treatment goals, and the available resources.