How Does Sewage Affect the Environment?
Sep 27 2016 Read 44327 Times
As much as we’d like to avoid it, sewage is an important consideration for every part of the world. What is it? Simply put, it’s water-carried waste. Whether it’s the stuff that leaves your toilet, or the vast amounts of wastewater that flow out of industrial plants – we all contribute to it and collectively we all have to deal with it. But what exactly is ‘dealing’ with sewage? And what is the impact of sewage on the environment?
Sewage and wastewater
Unfortunately, the effects of sewage on the environment are largely negative. It needs to be properly treated before it can be disposed of – usually into the ocean. There are two problems, however. If sewage is only partially treated before it is disposed of, it can contaminate water and harm huge amounts of wildlife.
Alternatively, leaking or flooding can cause completely untreated sewage to enter rivers and other water sources, causing them to become polluted. The consequences aren’t great. In September, a large part of the River Trent was polluted by sewage in Staffordshire. Over 15,000 fish were killed, and it would have been worse if the sewage had reached a human water source. Contamination of water sources can cause diseases to spread, such as e-coli, diarrhea and hepatitis A.
Even properly treated sewage can have its problems. Researchers have recently found that microscopic plastic fibres, released when certain clothes are washed, can make it through wastewater treatment plants and into marine ecology systems. Like the more common contaminants, they can harm animals and damage the food chain.
It isn’t all bad though. As well as pollutants, human sewage contains a pool of information that can be used to monitor a range of areas. While most research has focussed on monitoring the use of illegal drugs, it is now being extended to the other potential fields of research. Determining the presence of pesticide metabolites, for instance, can be beneficial for the food and agricultural sector.
Analysing wastewater can also detect markers of oxidative stress in collective samples. This is essentially an indication that bodies are unable to neutralise certain diseases. It can help researchers determine the effects of environmental pollution on particular communities.
But how does it work? Because wastewater is so diverse and complex, targeted analysis requires more advanced methods. ‘The utility of municipal wastewater analysis for drug epidemiology, food safety and environmental monitoring: From targeted analysis of biomarkers to non-target screening’ is an eLearning course which explores the world of wastewater-based epidemiology. It looks at the different analytical techniques and technology required for analyses, but also where the field is heading with current and future developments.
Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.
In This Edition Gas Detection - Flammable Gas Dectection In Coal Mines - Protective concepts in combustible gas and vapor detection - The only line of gas sensing elements with SIL2 capabil...
View all digital editions
Oct 20 2018 Houston, USA
Oct 23 2018 Dubai, UAE
Oct 23 2018 Poznan, Poland
Oct 23 2018 Moscow, Russia
Oct 24 2018 Cremona, Italy