Top benefits of biological wastewater treatment

Table of Contents

Biological wastewater treatment systems over suspended growth systems is that their microbial populations are more resistant to shock loads of contaminants. By removing pathogens and harmful chemicals, wastewater treatment plants reduce the potential for waterborne diseases. Clean water from treatment plants can be safely returned to water sources and  safeguarding public health.

As a house owner, treating the wastewater from your home properly is more than just environmental responsibility but also for the health of your family and durability of your house plumbing. Although physical methods of wastewater treatment such as screening and sedimentation can get rid of some pollutants, they often prove inefficient when it comes to breaking down organic matter and neutralizing harmful pathogens. Benefits of biological wastewater treatment plays an important role for several reasons, as it is important for environmental protection, public health, sustainability, compliance with regulation, water reuse and food security.

Benefits of using biological treatment:

The biological treatment of water uses microorganisms to clean the water from contaminants. This method offers numerous benefits compared to traditional wastewater treatment methods.

1. Effective Removal of Organic Matter:

                                                              One of the key benefits of biological wastewater treatment is its superior capacity for removing organics from wastewater. Domestic wastewater contains a lot of organic materials such as food remains, fats, oils, hairs as well as human excreta.

  • The Power of Microorganisms:

                                                       In a biological system dealing with this issue, various types of bacteria and other microorganisms interact together to decompose and metabolize such organic compounds. A number of microbes also release enzymes that break down complex molecules while others use their mouth parts to consume smaller organic fragments.

2. Pathogen Removal for Improved Public Health:

                                                                              Another good thing about biological wastewater treatment is that it removes harmful pathogens from water. As a result, public health is safe and there is no risk of spreading diseases caused by water contamination. Wastewater contains all types of bacteria and viruses that can cause diseases if not taken care of properly.

  • Nature’s Microscopic Warriors:

                                In this regard, some microorganisms in the treatment system are predators that feed on the waste materials thereby killing bacteria and other disease causing organisms.

  1. Reduced Reliance on Chemicals and Energy:

                                                     Compared to traditional physical/chemical processing methods, biological wastewater treatment needs less energy as well as less toxic substances which makes it more sustainable for home owners who prefer eco-friendly approaches.

  • A Natural, Energy-Efficient Process:

                          In contrast, biological treatment heavily depends on the actions of microorganisms which need minimal amounts of energy to work, as against UV disinfection or reverse osmosis that is very energy intensive.

  • Reduced Chemical Usage:

                                    Most other wastewater treatment methods use strong chemicals such as chlorine, acids, and flocculants that can be dangerous to both people and the environment if they are not managed properly.
4. Enhanced Nutrient Removal:

                                                    Domestic waste waters contain more than just pathogens because nutrients like nitrogen and phosphorus found in elevated quantities within them can lead to eutrophication (an overgrowth of algae) in receiving water bodies.

  • The Microbial Nutrient Cycle:

                                     More to this, these nutrients can be removed or transformed into less dangerous forms by certain microorganisms in biological treatment systems. For instance, nitrifying bacteria can change ammonia (a poisonous type of nitrogen) into nitrates, which are less damaging to aquatic organisms.

  1. Improved Odor Control:

                                     Bad odor can emanate from untreated or improperly treated wastewater primarily due to anaerobic bacteria (oxygen lack). The breakdown of organic matter by these anaerobes produces hydrogen sulfide and mercaptans among other compounds.

  • A Fresh, Odor-Free Environment:

                              Nevertheless, in a well-designed biological sewage treatment system, microbial communities collaborate harmoniously with each other to minimize odor-forming species. Nevertheless air-loving aerobic bacteria have outcompeted and reduced populations of those that produce odors without oxygen anaerobic ones.

  1. Versatility and Scalability:

      It is versatile and scalable biological wastewater treatment where it can be employed in several domestic settings, ranging from individual houses to small communities.

  • Adaptable to Your Needs:

Such systems can be designed to handle different quantities of wastewater flows at varying points in time, with modular designs enabling easy expansion or contraction according to demand.

  1. Potential for Water Reuse and Resource Recovery:

                In addition to producing clean, treated effluent, some biological wastewater treatment systems offer the opportunity for water reuse and resource recovery, further enhancing their sustainability and economic benefits.

  • Reclaiming Valuable Resources:

                                  Treated wastewater from these systems can be safely reused for non-potable purposes like irrigation, toilet flushing, or industrial processes, reducing the strain on freshwater resources.

  1. Low Maintenance and Operational Costs:

                                Compared to many conventional wastewater treatment methods, biological wastewater treatment systems typically require less maintenance and have lower operational costs, making them an economical choice for homeowners in the long run.

  • Minimal Operator Intervention:

                                    Once established, the microbial communities in these systems are largely self-sustaining, needing minimal operator intervention or specialized expertise. Unlike complex chemical treatment processes that require constant monitoring and adjustments, biological systems operate automatically, relying on the natural metabolic activities of the microorganisms.

  • Reduced Energy and Chemical Costs:

                                        As mentioned earlier, biological wastewater treatment systems consume significantly less energy and chemicals compared to many physical and chemical treatment methods. This translates into lower utility bills and reduced operational expenses for homeowners.

  1. Environmental Sustainability:

                              In an era where environmental concerns are increasingly prioritized, biological wastewater treatment offers a sustainable and eco-friendly approach to managing household wastewater, minimizing the impact on natural ecosystems.

  • Promoting a Circular Economy:

                                         By effectively treating wastewater and enabling water reuse, these systems contribute to the concept of a circular economy, where resources are efficiently cycled and reused rather than wasted.

  • Protecting Aquatic Ecosystems:

                                   When properly treated, the effluent from biological wastewater treatment systems can be safely discharged into the environment without posing significant risks to aquatic life or contaminating water bodies.

  1. Compliance with Regulations:

                                            In many regions, there are strict regulations governing the treatment and discharge of wastewater to protect public health and the environment. Biological wastewater treatment systems, when designed and operated correctly, can help homeowners comply with these regulations, avoiding potential fines or legal issues.

  • Meeting Stringent Standards:

                             These systems are capable of achieving high levels of contaminant removal, often meeting or exceeding the standards set by local, state, or federal authorities for wastewater treatment.

  • Monitoring and Reporting:

                         Many biological treatment systems also incorporate monitoring and reporting capabilities, allowing homeowners to track system performance and generate compliance documentation as needed.

Conclusion:

In conclusion, biological wastewater treatment offers a comprehensive and sustainable solution for managing household wastewater, providing numerous benefits that extend beyond just water purification. From effectively removing organic matter and pathogens to reducing energy and chemical usage, these systems prioritize environmental sustainability while ensuring compliance with regulations.

 

 

Frequently Asked Questions

Biological wastewater treatment methods are advantageous in that they can treat a wide range of pollutants and nutrients, resulting in energy/chemical generation with efficient organic removal, thereby improving the wastewater quality and reducing the environmental impact of wastewater discharge
It relies on bacteria and nematodes to break down organic wastes using normal cellular processes. The aim of biological wastewater treatment is to create a system to collect final disintegration easily for proper access.
Chlorine is the chemical most often used in treating sewage and other types of wastewater. The process is called chlorination. This is the most effective means of destroying a variety of viruses and bacteria. A method known as neutralization is effective when treating industrial wastewater.
Sewage Treatment Plant has its pros and cons. Although it treats water in less time, produces energy, fertilizers, reduces public health risk, and reduces water pollution, it also produces a pungent smell, hybrid bacteria, requires huge capital, land area, and leaves an environmental footprint.

Kęstutis Dakinevičius

Currently, I work in the field of production, sales and systems installation of modern BioTornado - biological wastewater treatment equipment, in the company "Biotechnologijos grupė" in Lithuania. 10 years of experience in construction. Occupational safety qualification certificate. Participation in international construction exhibitions and increasing available knowledge.