7 Hazards Associated with Combined Sewage System
A combined sewage system is one the handful variations of sewer line system formations that is responsible in transporting wastes and dirty water from the residential of industrial site to treatment plants for processing and purification before they are released into the environment for disposal. This system is essential in keeping order and hygiene to the community. However, just like every other sewer system, this too has its own disadvantages and setback, imperfections and issues, if you may. These are:
Whenever dealing with sewer lines and other forms of garbage disposal systems, you are surely going to encounter a few raised brows from active environmentalists. They never encourage the installation of combined sewer lines because this is an unsecured method of transporting wastes and therefore can lead to different disasters that can affect the health of people and wildlife dependent on the environment for shelter and survival. Also, since this system is catering to both waste materials and chemical-based solutions, an overflow is not a far-fetched possibility. In fact, this is a common occurrence especially in overpopulated areas. When an over-flow happens, there is inevitable harm coming to wildlife and bodies of water such as ponds, lakes, rivers and seas. At best, it could damage but at worst, it could completely destroy wildlife habitats and annihilate and entire specie.
A combine sewage system carries both sewage and storm water this is why during the rainy seasons or snowmelts, more volume of liquids will occupy most of the sewer pipes. During these times, the possibility of an overflow could not be any higher. Since the system carries both solid and liquid wastes, they tend to mix together making the overflow water dangerous and damaging to the environment and everyone living and depending on it. Runoff water can also find their way into supply mains, effectively contaminating the water supply that can lead to sickness and even poisoning.
Marine Specie Poisoning
This type water collection system is always headed to the body of water nearest to the community. This endangers marine life living in that area considering the large volume of runoff water that could reach there whenever the capacity of the pipe has been exceeded and the water flows to the body of water un-treated and un-purified. The overflow of the water can contain harmful chemicals and substances that are poisonous to the marine life.
High Upfront Cost
Since the installation process requires heavy excavations and digging, there is no surprise in the high upfront cost of this system. Also, whenever you have to dig through concrete roads and pavements, you also have to consider the expenses needed in order to restore the property. Hiring specially-trained engineers is also a necessity to carry out the process.
Harmful chemicals are contained and mixed with the storm water that this pipeline transports which is why it can lead to different illnesses and diseases if it makes its way into the supply mains. This is caused by the pathogenic organisms present in the liquid wastes inside the pipe. Pathogens can make contact with humans through inlets. They can cause diarrhoea and even death.