What is a waste water treatment plant?
A wastewater treatment plant is a facility that treats industrial wastewater and removes contaminants using a mix of methods (e.g., physical, chemical, and biological).
A wastewater treatment plant principal purpose is to treat, decompose, and convert waste into usable by-products that are not harmful to the environment. One of the most important processes in wastewater treatment plants is biological waste treatment. Microbes that live in the environment play an important part in the breakdown of organic waste.
Sludge and effluent are then formed from the wastewater, which is then discharged into the environment.
Why winters impact waste water treatment plants?
Temperature is one of several parameters that influence the performance of a wastewater treatment system. It's a crucial parameter that has an impact on the biological treatment of wastewater. As a result, the wastewater treatment plants confront some significant obstacles throughout the winter months.
The impact of winter season on waste water treatment plants
One of the most significant effects of cold is the slowing down of the activity of beneficial bacteria in treatment plants.
Microbial growth, production, and metabolism are all hindered by low temperatures. As a result, the natural microbial community is unable to effectively break down organic waste that reaches wastewater treatment plants. Furthermore, managing the amount of Mixed liquor suspended solids (MLSS) generated in the facility becomes problematic.
Microbes lose around one log of potential growth for every 10 degrees F drop in temperature, according to wastewater treatment specialists, which is a 90% reduction. Bacterial growth necessitates a temperature range of 59 to 113 degrees Fahrenheit. The low temperature in winter also disrupts the effluent BOD and TSS limitations.
BOD decomposition rates are predicted to decrease throughout the winter, whereas TSS levels rise. The amount of sludge produced is increasing, but the effectiveness of sludge removal is decreasing. Other variables including dissolved oxygen, retention time, wastewater pH balance, and nutritional requirements are all influenced.
During the winter months, the expansion of filamentous bacteria poses a severe problem for wastewater treatment plants.
The most typical causes are low dissolved oxygen, a low F/M ratio, or excessive sulphide levels. It wreaks havoc on the settling process.As a result, when the temperature drops below freezing, wastewater treatment effectiveness diminishes, resulting in disastrous consequences.
Waste levels in effluent are too high, making it poisonous and damaging to the environment. Eutrophication is caused by the release of various substances such as nitrogen into water supplies. Oxygen deficiency is a problem for aquatic animals. Humans that drink such water become afflicted with a variety of ailments.
Poor wastewater treatment plant performance frequently results in increased operating and maintenance expenses. It is more vital to prevent the problem than to fix it when treatment facilities fail. There are numerous options, such as boosting wastewater temperature and reducing waste loading, but they are neither long-term cost-effective or efficient.
What are the solutions?
Innovative technologies can be employed to increase the performance of wastewater treatment facilities during the winter season to overcome the aforementioned obstacles. Using a specific microbial population, trash can be biologically degraded more quickly.
We can customize products that can thrive in a wide variety of temperatures, pH levels, high TDS and low dissolved oxygen environments, and thus can aid in the formation of MLSS more quickly during the winter season. The products can be further utilised in Activated Sludge Process (ASP), Sequence Bed Reactor (SBR), Lagoon Process, Moving Bed Bioreactor (MBBR), Membrane Bioreactor (MBR), Rotating Biological Contractor (RBC), and Fluidised Air Bed Reactor.
Netsol Water is a well-known company that offers a wide range of wastewater treatment options.