What are the Operational Issues in waste water treatment Plants?
Treatment is the process of removing contaminants from wastewater and converting it into effluent that may be recycled back into the water cycle. Once returned to the water cycle, the effluent has a low environmental impact or can be reused for a variety of uses.
Companies and utilities that adopt sustainable, effective, and efficient wastewater treatment plant solutions play a critical role in guaranteeing safe, clean water that can be reused or discharged without harming the environment.
Although progress has been made in the process of integrating and optimising wastewater treatment plant operations in recent years, issues still exist.
Operational issues in waste water treatment plants
1: Sludge Generation
Sludge is a term used to describe the solid particles that remain after the wastewater treatment process is completed. Mechanical, biological, and chemical therapy are all used in this process. The disposal of excess sludge produced during the wastewater treatment process, with the limitations of pH adjustment and restrictions, is a key environmental cost factor for wastewater treatment operators.
Solution for the problem
A sustainable treatment facility requires long-term, safe, and sustainable solutions for the deposition of sludge solids produced by home and industrial wastewater treatment plants. The most beneficial application of sludge solids in agriculture is known to contain helpful nontoxic organic materials and nutrients. Modern treatment technologies, such as specialised jet aeration diffusion technology, can even reduce the load of sludge by at least half by minimising its production.
Treatment operators in wastewater treatment plants must be properly trained and certified in order to perform their duties. These people are maintained on high alert at all times of the day and night. They are in charge of everything from valves to pipe leaks, as well as instrumentation and electrical systems, and they coordinate and manage it all. During fluctuations in source water quality and seasonal water flow rate variations, this work becomes even more difficult.
Solution for this
Physical presence of workers responsible for the oversight of activities completed at water and wastewater treatment plants will always be required. In reality, plant operations management can account for up to 30% or more of a facility's wastewater treatment plant's operational expenditures. Emerging technologies like bio-organic flocculants and specific electrochemical treatment technologies can be employed and driven in a sustainable way to optimise automation and labour integration. This helps to reduce the amount of plant workers required while also increasing plant efficiency.
3: Energy Consumption
One of the most significant costs in operating a wastewater treatment facility for an industrial or water utility client is energy usage. The generation and subsequent treatment of wastewater is expected to use around 3% of a modern nation's electrical power supply, or about 61 tWh (terawatt hours) each year on average. The biological aeration process consumes the most amount of energy in home wastewater treatment applications. The amount of energy used in the aeration process is normally between 50 and 60 percent of the total energy used in the facility.
Solution for this
Changes to biological treatment processes have the ability to minimise energy consumption at a treatment facility while improving treatment performance measures. By use of integrated head works screens in primary treatment; sustainable bio-organic liquid flocculants for efficient suspended solids clarification; and jet aeration diffusion systems in aeration basins, can save up to 40% on energy consumption over coarse bubble and surface diffusion systems.
The traditional treatment of activated sludge has a number of flaws. Its land footprint is one of the largest. Because of the considerable civil works required, activated sludge wastewater treatment plants are more expensive to build.These systems also take up a lot of acreage because of the several big tanks and basins needed for clarity, aeration, and post-treatment.
Solution for this
Advanced technologies can lower the footprint of treatment facilities by using smaller aeration basins and increase the amount of biomass by adding flexible media for biofilm attachment. Furthermore, electrochemical coagulation technologies are well-known as an important component of a facility's decentralised treatment system, which serves both industrial and water utility clients, particularly in densely populated areas. This smaller treatment plant footprint not only saves money on land, but it also saves money on capital costs.