By running an electrical current through wastewater of liquid and suspended solids, electrocoagulation solidifies or semi-solidifies the wastewater or sewage in STPs. The liquid becomes coagulated when the intense temperature produced by the current is concentrated within it.
Although, the method is undoubtedly helpful in water and sewage treatment applications, is it really worth the money? Let's investigate how EC is different from other STP technologies. We will also discover the benefits and drawbacks of electrocoagulation technology used in STPs.
What is electrocoagulation in sewage treatment plants?
Wastewater treatment, sewage treatment, industrial water processing, and medicinal treatment are all done using the electrocoagulation (EC) technology. Due to its capacity to remove contaminants like emulsified oil, total petroleum hydrocarbons, refractory organics, suspended solids, COD, BOD, and heavy metals that are typically more challenging to remove, by filtration or chemical treatment systems, electrocoagulation has become a rapidly expanding area of sewage treatment.
In order to achieve advanced oxidation processes for refractory or recalcitrant organic substances, there are numerous electrocoagulation devices that range in complexity from simple anode and cathode devices. These may also lead to more complex devices with passivation, control over electrode potentials, anode consumption, cell REDOX potentials, and the introduction of ultrasonic sound, UV light, and a range of gases and reactants.
How is electrocoagulation different from other STP technologies? What are the advantages of EC technology?
When compared to other wastewater treatment technologies, electrocoagulation systems provide a number of advantages:
· Low operating costs,
· Quick installation times,
· Great treatment results,
· The equipment and a modest amount of on-site civil work are the key capital expenses,
· Power and metal plate make up the majority of the operating expenses,
· Compared to other procedures, this approach requires far less civil work and has a smaller equipment footprint,
· High levels of automation,
· Easy operation and remote monitoring.,
· Wide range of working circumstances with shock load resistance,
· Ideal for a range of pollutants, including manganese, chromium, lead, cadmium, copper, and other heavy metals, regardless of hydraulic loading and water quality,
· High pollutant removal efficiency with less sludge production,
· Manganese and chromium can be removed more effectively than with previous technologies, while producing less sludge,
· Power consumption replaces chemical agents, allowing for easy start-and-stop operation,
· Stable treatment performance even with variations in water quantity or quality.
· Grease, Oil, and Fat removal, etc.
In addition to being able to remove a wide variety of contaminants, electrocoagulation has the following benefits:
· No further chemical additions,
· Less sludge is produced since it may be easily dewatered (up to 60% DM) without the use of chemicals,
· Compared to traditional physical-chemical pretreatment, lower CAPEX and OPEX,
· Simple machinery with no moving parts,
· Treatment that is colourless and odourless,
· Excellent settling flocs,
· Even the tiniest colloids are eliminated,
· Simple sedimentation for sludge separation,
· Minimal footprint.
What are the disadvantages of EC technology?
1: Electrodes are brittle
These are needed for electrocoagulation in order to feed current into the solution. Unfortunately, the coagulation process is a labour-intensive one that puts a lot of stress on the electrodes, causing wear and tear.
This implies that the electrodes must undergo routine cleaning and maintenance. This can be pricey work that requires a lot of labour. The electrodes' short lifespan and frequent replacement are further effects of this.
The process' outcomes can be impacted by any or all of the following elements:
· Materials and electrode design
· The distance separating the two electrodes
· Polarity of the electrodes
· The current's strength
· The wastewater's conductivity
· pH levels in wastewater
· The particle size and other components
2: Active adjusting is necessary
Since, consistency is challenging, the process stops being passive. It is not sufficient to just set up the machinery, turn it on, and collect the effluent. To attain the desired result, you need a team that can actively adjust the machinery.
This can be quite time and money-consuming. The outcomes may be very advantageous for your company, but getting there cost a lot of effort and money.
High quality sewage treatment plants from Netsol
Clean water is produced by Netsol Water EC treatment systems, which are designed, built, and installed with safety and the environment in mind. Our EC units can be constructed according to the needs of the customer.
Our quality management system has been certified, and we encourage our clients to talk to us about the high-quality, pure water they need for their specific applications. Our technical staff is able to precisely design and build the device, which satisfies beyond client quality criteria. Call us at +91 9650608473 or email at enquiry@netsolwater.com for further information.