Difference Between Electrocoagulation and Chemical Coagulation

Thekey difference电凝法和化学coagulatio之间n is that电凝使用电荷来凝结物质，而化学凝结则使用coagulant凝结物质.

电凝和化学凝血是两种类型的coagulation技术。与化学凝血技术相比，电凝是一种晚期技术。这两种技术在废水处理中都很重要。

内容

1.Overview and Key Difference
2.什么是电凝
3.What is Chemical Coagulation
4.并排比较 - 电凝与表格形式的化学凝血
5.概括

什么是电凝?

Electrocoagulation is an analytical technique in which coagulation is achieved using an electrical charge. We can denote electrocoagulation by “EC”. It is a very important process in wastewater treatment, wash water treatment, industrial processed water production, and medical treatments. This technique has become a rapidly grown area in wastewater treatment due to its ability to remove contaminants from a sample, which is generally difficult to be removed via filtration or chemical treatment methods. There are different electrocoagulation devices we can buy, ranging from simple systems to very complicated ones. For example, a simple electrocoagulation device may contain a simpleanode and a cathode.

In the field of medical treatment, a fine wire probe or some other delivery mechanism can be used to transmit radio waves to tissues near the probe. Thereafter, the molecules within that tissue tend to vibrate, leading to a rapid increment of the temperature, which can cause coagulation of the proteins within the tissue. This can effectively kill the tissue.

There are some benefits of using electrocoagulation over other coagulation techniques. For example, mechanical filtration in medical analysis processes can only filter off suspended solids that are larger than 30 micrometres and free oil with grease. Here, using electrocoagulation can remove any size of suspended solids, including particles smaller than 30 micrometres.

What is Chemical Coagulation?

Chemical coagulation is an analytical technique in which coagulation is achieved with the use of a coagulant. This technique involves the addition of compounds that can promote the clumping of fines into larger floc so that they can be more easily separated from the water. This is a chemical process that involves the neutralization of charge, whereas絮凝是一个物理过程，不涉及中和电荷。因此，在废水处理过程中一起使用凝血和絮凝。

Generally, the most common coagulants used in chemical coagulation are irons and aluminium salts. However, salts of other metals such as titanium and zirconium are also considered as highly effective compounds.

在考虑影响化学凝血的因素时，它主要受此过程中使用的凝结剂的影响。剂量和凝结剂的质量是要考虑的重要因素。此外，废水样品中存在的分析物样品的pH，初始浊度以及存在的污染物的性能也是关于因素。

What is the Difference Between Electrocoagulation and Chemical Coagulation?

The key difference between electrocoagulation and chemical coagulation is that electrocoagulation uses an electrical charge in order to coagulate substances, whereas chemical coagulation uses a coagulant to coagulate substances. Electrocoagulation uses an electric current along with an anode and a cathode while chemical coagulation uses a coagulant such as salts of iron or aluminium. Electrocoagulation is an advanced technique compared to chemical coagulation technique.

Below infographic tabulates more differences between electrocoagulation and chemical coagulation.

概括– Electrocoagulation vs Chemical Coagulation

电凝和化学凝血是两种类型的coagulation techniques. The key difference between electrocoagulation and chemical coagulation is that electrocoagulation uses an electrical charge in order to coagulate substances, whereas chemical coagulation uses a coagulant to coagulate substances.

Reference:

1. “Chemical Coagulation.” ScienceDirect Topics,Available here.

Image Courtesy:

1. “The coagulation and filtration processes at a drinking water treatment plant. (14868618507)” By USEPA Environmental-Protection-Agency – The coagulation and filtration processes at a drinking water treatment plant., (Public Domain) viaCommons Wikimedia