EDTA is the most widely used chelating agent for removal of undesirable cations in many industrial applications such as the dairy industry. It is generally considered to be non-biodegradable by conventional wastewater treatment, thereby potentially producing an environmental health risk.
Full Answer
What can be EDTA be used for?
uses of chelating agents. With increasing industrial use of ED TA, the concentration of the chelat ing agent in wastewater may become large enough to affect wastewater treat ment. A research program was initi ated by the Milwaukee Sewerage Com mission to establish the effect of ED TA on various methods of sewage treat ment. Summary of Theory
What is EDTA and what does it do?
Mar 15, 2022 · EDTA is used to treat lead poisoning and brain damage, radioactive metal poisonings such as thorium, uranium, and strontium, to remove copper in patients with “Wilson’s disease” and to reduce the amount of calcium in the body of people with high calcium.
What are the dangers of EDTA?
Jul 01, 1999 · Treatment of waste containing EDTA by chemical oxidation Abstract Ethylenediaminetetraacetic acid (EDTA) is a chelating agent that has been extensively used to enhance the solubilization of heavy metal cations and release of EDTA contributes to environmental problems.
What is the full form of EDTA and its use?
Mar 22, 2012 · IM–FOC process is used for the treatment of wastewater containing EDTA-Cu(II). Treatment efficiencies and Fe(II) yields of IM were much higher at lower initial pH. IM provides Fe(II)-rich wastewater with proper pH for subsequent Fenton oxidation. The contributions of IM, FO and coagulation to COD removal are 22.3%, 47.8% and 10.9%. IM–FOC process completely …
Why EDTA is widely used?
EDTA is used extensively in the analysis of blood. It is an anticoagulant for blood samples for CBC/FBCs, where the EDTA chelates the calcium present in the blood specimen, arresting the coagulation process and preserving blood cell morphology.
How EDTA is useful in water treatment?
EDTA is the most widely used chelating agent for removal of undesirable cations in many industrial applications such as the dairy industry. It is generally considered to be non-biodegradable by conventional wastewater treatment, thereby potentially producing an environmental health risk.
What does EDTA treat?
EDTA is sometimes prescribed by doctors to clean toxic metals, such as lead, from the blood. Doctors have used the molecule for decades to treat heavy metal poisoning. In those cases it is given through an IV. EDTA is also an ingredient in some prescription cancer-fighting medicines.Mar 26, 2020
Which technique is used in sewage disposal?
Physical Water Treatment One of the main techniques of physical wastewater treatment includes sedimentation, which is a process of suspending the insoluble/heavy particles from the wastewater. Once the insoluble material settles down at the bottom, you can separate the pure water.Feb 8, 2018
Where is EDTA used?
In manufacturing, EDTA is used to improve stability of some pharmaceutical products, detergents, liquid soaps, shampoos, agricultural chemical sprays, contact lens cleaners and cosmetics. It is also used in certain blood collection tubes used by medical laboratories.
Is EDTA solution in water?
EDTA isn't soluble in water unless the pH is at least 8, so you need to add NaOH to make EDTA solution. EDTA is the acronym for ethylenediamine tetraacetic acid. EDTA finds use as a ligand and chelating agent.Jul 6, 2020
Why is EDTA used as a chelating agent?
EDTA is frequently used in soaps and detergents, because it forms a complexes with calcium and magnesium ions. These ions are in hard water and interfere with the cleaning action of soaps and detergents. The EDTA binds to them, sequestering them and preventing their interference.
How does EDTA help as a cure for lead poisoning?
The chelate complex of calcium and EDTA is used in hte treatment of lead poisoning. Inside the body calcium in the complex is replaced by lead. The more soluble lead- EDTA complex is eliminated in urine.Mar 12, 2022
What are the 3 types of sewage treatment?
There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment. In some applications, more advanced treatment is required, known as quaternary water treatment.Dec 6, 2018
What are the 4 stages of wastewater treatment?
Treatment StepsStep 1: Screening and Pumping. ... Step 2: Grit Removal. ... Step 3: Primary Settling. ... Step 4: Aeration / Activated Sludge. ... Step 5: Secondary Settling. ... Step 8: Oxygen Uptake. ... Sludge Treatment.
What is wastewater management class 7?
Sewage Treatment: The process of removing impurities from waste water before it can be reused or sent to the water bodies is called sewage treatment or cleaning of water. Sewage: The liquid waste which has water as its largest component (along with various types of impurities) is called sewage.
What is EDTA used for?
Ethylenediaminetetraacetic acid (EDTA) is a strong complexing agent widely used in the electroless copper-plating process in the printed circuit boards ( PCBs) industry. EDTA can form very stable complexes with cupric ions, greatly reducing the efficiency of Cu (II) removal by conventional chemical precipitation (e.g., OH −, S 2−, CO 3 2 -) and other processes [1]. The presence of Cu (II) ions in wastewater and drinking water exerts negative impacts on both potable bodies of water and human health. Furthermore, EDTA-Cu (II) may escape treatment by wastewater treatment plants (WTP) and create great trouble during the treatment of industrial effluents and other contaminated waters due to its high toxicity and the notable affinity of EDTA for Cu (II) [2]. Indeed, EDTA is a nonbiodegradable compound whose environmental effects can be magnified by its persistence [3]. These problems have led to an urgent need for the development of effective treatment processes.
Where is EDTA-Cu obtained from?
Wastewater containing EDTA-Cu (II) was obtained from a printed circuit board factory (Guangzhou, China). The composition of wastewater varied slightly in terms of concentrations of Cu (II) and the chelating agents used in the electroless copper-plating process. The characteristics of the chelated wastewater sampled from the workshop are provided in Table 1. Wastewater shows very low pH values and high concentrations of COD and Cu (II). The COD concentration reaches a high level of 998–1212 mg/L, while the BOD 5 /COD is 0, revealing the existence of large amounts of nonbiodegradable EDTA species in the wastewater.
What is an IM reactor?
The IM reactor was a cylindrical fluidized bed with a 30-L working volume and 7.5-L IM fillings. The fluidized bed was equipped with an intermittently aerated device and a reflux pump at the bottom. The wastewater reflux (1 time per 60 s, last for 1 s) and intermittent aeration (1 time per 15 min, last for 1 s) conditions in the fluidized bed guarantee a fluidized state of the iron and carbon particles and thus overcome the critical weaknesses of traditional IM reactors, such as reactor clogging and iron deactivation. The IM reactor was operated intermittently, and the fillings were reused.
What is the IM process?
The IM process, which employs iron and carbon as the anodic and the cathodic materials, operates on principles very similar to those of electrochemistry methods [16]. However, the electron flows are provided by a galvanic cell instead of an external power supply. The pertinent half-cell reactions are as follows [17]:
What is EDTA in the body?
EDTA is a chemical that binds and holds on to (chelates) minerals and metals such as chromium, iron, lead, mercury, copper, aluminum, nickel, zinc, calcium, cobalt, manganese, and magnesium. When they are bound, they can't have any effects on the body and they are removed from the body.
Is EDTA safe for eyes?
Side Effects. EDTA is safe when used as a prescription medicine, as eye drops, and in small amounts as a preservative in foods. EDTA can cause abdominal cramps, nausea, vomiting, diarrhea, headache, low blood pressure, skin problems, and fever.
What is the best way to treat lead poisoning?
Treating lead poisoning. Giving EDTA in the vein or muscle is effective for treating lead poisoning and brain damage caused by lead exposure. One specific kind of EDTA, the calcium disodium form, is approved by the U.S. Food and Drug Administration (FDA) for these uses.
How long can you take EDTA?
It is UNSAFE to use more than 3 grams of EDTA per day, or to take it longer than 5 to 7 days. Too much can cause kidney damage, dangerously low calcium levels, and death. Special Precautions & Warnings: Pregnancy and breast-feeding: EDTA seems to be safe when used in food amounts.
Does EDTA cause hypocalcemia?
Low calcium levels in the blood (hypocalcemia): EDTA can decrease serum calcium levels, making hypocalcemia worse . Low potassium (hypokalemia): EDTA can bind with potassium and increase the amount of potassium that is flushed out in the urine.
Does EDTA bind calcium?
This scar tissue frequently contains calcium. There is some concern that EDTA might be able to bind the calcium in the scar tissue, causing the “walls” to give way and release bacteria. Don’t use EDTA if you have active TB or had TB in the past. Special Precautions and Warnings.
Does EDTA affect potassium levels?
Water pills (Diuretic drugs) interacts with EDTA. Large amounts of EDTA can decrease potassium levels in the body. "Water pills" can also decrease potassium in the body. Taking EDTA along with "water pills" might decrease potassium in the body too much.
Abstract
EDTA is the most widely used chelating agent for removal of undesirable cations in many industrial applications such as the dairy industry. It is generally considered to be non-biodegradable by conventional wastewater treatment, thereby potentially producing an environmental health risk.
References (2)
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What is RO405 used for?
RO405 is a membrane cleaner based on the sodium salt of EDTA and has been developed to assist in the cleaning of acid insoluble sulphates of calcium, barium and strontium, as well as calcium fluoride. RO405 is an effective cleaner for iron oxide/hydroxide and calcium carbonate, though citric and hydrochloric acid are preferred for these ...
How to avoid eye irritation?
Avoid direct contact with skin and eyes to prevent mild irritation. In case of accidental contact, flush area with clean water. Product should not be ingested. Refer to Safety Data Sheet for full details.
