The effects of wastewater treatment on the environment

One of the things on which there is no disagreement is the extent to which sewage is harmful to the environment. But have you ever read about the harms of wastewater treatment? Which puzzled many interested in this field. Whereas, if wastewater is treated incorrectly or reliance on inappropriate techniques. Or hiring an inexperienced company, using unapproved tools, or neglecting periodic maintenance and continuous follow-up of results. All of these are possibilities to increase the damages of sewage treatment.

History of wastewater from environmental pollutants and ways to treat it

There was little progress in sanitation during the Middle Ages. Where special lockers and gates were used. But most of the waste was simply dumped into gutters to be dumped through drains by floods.

Water tanks were installed in homes in the early 19th century. But they were usually connected to bathtubs rather than sewers in densely populated areas.

Local conditions soon became intolerable because wells were seldom emptied and overflowed often and the danger to public health became apparent. Cholera outbreaks have been traced directly to groundwater contamination with sewage and well water contaminated with human waste from private basements and ponds.

It soon became necessary to connect all water tanks in major cities directly to rainwater sewers. This led to the transfer of sewage from the land near the houses to the nearby bodies of water and thus a new problem of surface water pollution arose.

The effects of wastewater treatment and ways to treat it

When small amounts of sewage are discharged into a flowing body of water. A natural process of self-purification of the stream occurs, which generates large amounts of sewage in densely populated communities. However, dilution alone does not prevent contamination and this makes it necessary to treat or purify the wastewater to some extent before disposal.

The construction of centralized wastewater and water pollutant treatment plants began in the late nineteenth and early twentieth centuries. Primarily in the United Kingdom and the United States, instead of sewage being discharged directly into a nearby body of water.

It is first passed through a combination of physical, biological, and chemical processes that remove some or most of the pollutants. Also starting in the 20th century, new wastewater collection systems were designed to separate rainwater from domestic wastewater. So that the treatment plants are not subjected to overload during periods of wet weather.

The problem of sources of organic pollutants and ways to treat them

• There are a large number of organic pollutants from a wide variety of sources. Which may be more than 137 organic compounds in the impact of municipal sewage plants in Stockholm.
• These pollutants include polycyclic aromatic hydrocarbons. Polycyclic aromatic hydrocarbons (PAHs) arise from the incomplete combustion or pyrolysis of organic materials such as wood, carbon, or metals.
• These combustion processes include food preparation in homes and food stores. In addition to the disposal of some petroleum products (from garages, car washes, maintenance, and gas stations). Also, storm run-off with PAHs is discharged from automobile and road exhaust particles and water runoff. As well as from incomplete penetration in urban landfills.
• The most common anthropogenic sources of PAHs are (household fires, thermal power, vehicular traffic, waste incineration, and industrial plants) as well as (cement works, metal smelting, and aluminum production).
• Forest fires are also natural sources of concentrated PAHs in sewage sludge due to their low biodegradability.

The effects of wastewater treatment gases and how to treat it

Sewer gas odors are often a problem for homeowners when they have leaks, cracked pipes, clogged vents, or even clogged drains.

But what exactly is sewage gas?

Sewage gas is a mixture of toxic and non-toxic gases that when combined can produce a bad smell or smell of methane. More specifically, sewage gas is a by-product of natural human waste when the waste begins to break down and begin to emit gases.

At elevated levels, sewage gas can be dangerous. But it’s generally not a major health concern if you smell it in your home. However, you should seek professional help if there is a sewage smell in your home as it can become more dangerous over time.

Wastewater gas components

Wastewater gas consists of the following gases:

• Hydrogen sulfide.
• Ammonia.
• Methane.

Read more about wastewater treatment utilization images and treatment system stages from this article.

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