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Monday 26 December 2016

The Role of Sewage Water Treatment Plants in Preserving the Environment

If you have ever given sewage treatment plants a thought, these plants are hugely beneficial as they help prevent flow of sewage and wastewater, which has been collected from households, establishments, industrial, as well as agricultural zones. The wastewater is then gathered and sent through cities to wastewater treatment plants.

The goal of wastewater treatment plants

The specific goal of wastewater treatment is to ensure prevention of pollution and preservation of the natural environment. Water can be purified with the help of sewage treatment plant design and made clean from any contaminants before it’s discharged into the environment. The goal of treating sewage is to also to protect public health as well as prevent diseases from spreading in the environment.

Yet another goal is to ensure the control of water pollution and ensuring the water is thoroughly clean and free of contaminants. This step is to ensure purity of water before it is discharged to the environment specifically to any water body in the surrounding environment.

STEP System

A better idea is to collect the sewage from the community in to an effluent sewer system. This is also called a STEP system or Septic Tank Effluent Pumping System in other words. This means that the water thus collected can be transported through pipes and disposed off safely.

Wastewater treatment plants – maintaining safe bounds

Wastewater treatment ensures that sewage water is not disposed off in a matter dangerous to your human health and other life forms. Despite the fact that the planet has remarkable ability to heal itself, we must not misuse our position as humans and always remain within safe bounds when it comes to helping to preserve the environment.

Since the water treatment facilities reduce organic as well as suspended solids to prevent or limit environmental pollution, more advanced treatment facilities have been introduced with remove dissolved matter and toxic substances from the water. Although moral awareness on the subject has increased, the noble goal of zero discharge of pollutants is yet to be achieved.

Treatment Factors

Treatment includes physical, biological, as well as chemical methods. This includes removal of residual substances that are created by treatment processes and which must be disposed off in a safe manner. Bio solids or sludge must be reused carefully by composting or application on land. In certain circumstances, they are incinerated as well.

Conclusion

To protect the environment, it is more than essential to rely on natural processes for purification. The additional increase in the population also means that society will have to rely more on treatment plants to give nature a helping hand. By considering aesthetic and environmental concerns, pollutants can be controlled. Surely, the best of treatment plants can be used to control the environment in a better manner.

Sunday 25 December 2016

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Factors Affecting the Quality of Effluents in Effluent Treatment Plant Design

The quality of effluent in your treatment plant is of great importance. The characteristics of the effluent determine the important factors that are related to it. The biological, chemical, and physical properties that affect the quality of effluent must be considered while designing the treatment plant. Some of the parameters that need to be considered are:


  • Size of the effluent treatment plant: You need to decide how large the effluent treatment plant needs to be.  So that you get the hydraulic computations right, you need to compute the estimated effluent inflow in to the plant as well as the size of the conveying pipes and effluent channels.

  • Properly estimate the effluent inflow: You will also need to incorporate the design in such a way that the inflow of effluent can be accounted for and built scalably in the foreseeable future.

  • Estimate the seasonal variations: You will also need to estimate the seasonal variations in the size of the inflow. Moreover there could be larger inflows during the day compared to the night. What’s more, the inflow is likely to be greater during the rainy season. This inflow needs to be stabilized or made near constant so that the treatment process downstream remains functional.

  • Use of equalization tanks and ponds:  Such tanks and ponds offer additional benefits. In many cases, toxic substances present in the effluent can affect the effluent processes. Thus the toxic effluent can be reduced by diluting it in equalization ponds with the help of effluent that is composed of lesser toxins.

  • Capability to withstand shock loads: While designing the plant, you should also consider the fact that it needs to be able to withstand the shock loads during festival seasons such as Christmas and New Year. The effluent load can also increase during various festivals. 

  • The physical characteristics of the effluent: You need to consider the physical characteristics of the effluent while designing your plant. This includes the colour of the effluent, the constituent solids, its temperature, and even odour. This also means that the presence of suspended solids indicates the poor quality of effluent that makes the treatment difficult. 

  • What about solid material: Solid particles can consist of a variety of material such as grease or floating debris. This indicates that the effluent has not been effectively treated earlier. 

  • Other factors: Other factors include turbidity of effluent, quantity of silt present and also the temperature of the effluent. An unfavorable temperature can also impair the necessary biological as well as chemical processes. 

To conclude, it is essential that inorganic chemicals, heavy metals, toxic metals, etc. need special treatment processes. The scarcity of water is also important factor that needs to be considered. If you risk contaminating ground water or a nearby running stream or river, then you will need to consider better techniques for effluent treatment plant design.