Wastewater Treatment: 4 Effective Methods
Industrial and commercial companies use various wastewater treatment solutions to purify liquid
waste. Learn more about the different types.
(firmenpresse) - Industrial processes produce wastewater with levels of physical, chemical, metallic, and
metalloid toxins, which are harmful to humans and the environment in general. As a rule of thumb,
environmental agencies require industries to employ a wastewater treatment solution to reduce
toxins levels before discharging into municipal drainage systems or the environment.
Since the toxins vary from one industry to another, purification methods also vary depending
on the types and levels of toxins produced. In addition, stringent environmental standards expect
companies to adhere to the required levels of toxins. There are different methods used by
industrial liquid waste purification companies, and this article covers four methods, namely
chemical, biological, mechanical, and onsite.
Chemical
The chemical wastewater treatment solution involves the utilisation of chemicals. Some of the
commonly used chemicals include chlorine and ozone, as well as adding acid or base. Chlorine and
ozone can disintegrate pollutants into easily removable substances or less harmful substances.
Following purification with this method, liquid waste has less odour, a clearer colour, it is
less harmful, and organic particles are disintegrated into smaller sizes. The addition of a base
or acid is the process of neutralisation, which aims to adjust the pH level of water to a neutral
or accepted range by reducing the acidity or alkalinity of the water.
Biological
This is used to disintegrate organic pollutants by introducing fungi, bacteria, and other
microorganisms. In biological treatment, fungi, bacteria, and other microorganisms consume
organic pollutants and break them down into smaller particles, water, carbon dioxide, and biomass.
Some of the biological processes include:
Aerobic process: The use of oxygen by microorganisms to break down organic pollutants
into smaller particles that are less harmful.
Anaerobic process: Conversely, the anaerobic process involves the disintegration of
organic pollutants in the absence of oxygen to produce methane gas, carbon dioxide,
and biomass.
Activated sludge: Bacteria, microorganisms, and fungi are mixed with wastewater in an
aeration tank or basin where pollutants are consumed. Once the desired outcome has been achieved,
wastewater is separated from sludge in a settling tank.
Mechanical
This wastewater treatment solution involves the removal of solid waste both physically and by
mechanical processes. Some of the popular methods include:
Screening: Liquid waste passes through screens and meshes to remove contaminants such as
plastic and sticks.
Sedimentation: Heavier particles settle at the bottom of sedimentation tanks as
sludge, allowing clearer water to be discharged or treated further by other processes.
Filtration: Uses filtering or sand membranes to remove suspended solids and fine
particles.
Onsite Wastewater Treatment Solution
This uses the previously described methods to purify wastewater at the source, i.e., near or
within the facility where it is produced. There are many systems involved, with the typical one
for industrial purposes being decentralised. A decentralised system involves the utilisation of
purification plants near the source.
Usually, an industrial liquid waste purification company specialising in the installation of
decentralised systems will carry out an evaluation to determine the appropriate system for each
industry. This is then installed according to the environmental regulations for the discharge,
the characteristics of the liquid waste, and the types of contaminants present, among other
factors.
One of the popular decentralised systems is reverse osmosis (RO), which is suitable for various
industries. It uses high pressure to force contaminated water, referred to as brine, through a
semipermeable membrane. The membrane purifies contaminated water by removing and trapping toxins
and impurities of different types, to produce “cleaner” wastewater. The RO system can remove up
to 99% of impurities, and the purified wastewater can either be reused in industrial processes or
discharged accordingly.
Industrial and commercial processes use various methods and techniques to reduce contaminants
and toxins in liquid waste in order to produce purified wastewater that can be discharged to the
environment. To achieve this, companies need appropriate wastewater treatment solution systems
specific to their individual needs. Consult a reputable company for the installation and
maintenance of an appropriate treatment system.
Themen in dieser Pressemitteilung:
Unternehmensinformation / Kurzprofil:
Sean Clifford is an advisor at AllWater Technologies Ltd, a wholly independent company providing
consultation, equipment and the most effective wastewater treatment solution for your
business, including reverse osmosis water systems. Bringing together a host of experience and
specialist knowledge, the company is committed to building and maintaining long-term relationships
and creating maximum value and benefit for their customers.
Datum: 15.02.2024 - 13:32 Uhr
Sprache: Deutsch
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"Wastewater Treatment: 4 Effective Methods"
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