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 Electrocoagulation หรือกระบวนการรวมตะกอนด้วยไฟฟ้า

มันคือ พระเจ้า ของปลาชมพู เพราะจบ ป.โทมาด้วย Thesis เกี่ยวกับเรื่องนี้

 ตอนนั้นทำงานวิจัยเปลี่ยนน้ำเสียดำปี๋ ให้ใสกิ๊งด้วย EC นี่แหละ

เทอมหน้าต้องเรียนต่อ มีภาระหน้าที่จะสานฝันให้ตัวเอง ต้องบูชาเจ้านี่อีกแล้ว เลยต้องเอามาเก็บให้เป็นเรื่องเป็นราว ว่าจะรวบรวมแหล่งข้อมูล เป็นประโยชน์ต่อตนเองในงานวิจัย และบุคคลผู้สนใจต่อไป

Electrocoagulation

Although Electrocoagulation (EC) is an evolving technology that has for the past 100 years been effectively applied in wastewater treatment, the paucity of scientific understanding of the complex chemical and physical processes involved as well as the limitations (in terms of size and cost) of the needed power supplies in the past, have curbed large scale applications and hindered progress. In addition, the powerful manufacturers of chemicals have been able to restrict the market penetration of this effective, environmentally friendly chemical-free procedure.

With the latest technologies, reduction of electricity requirements, and miniaturization of the needed power supplies, EC systems have now become within reach of water treatment plants and industrial processes worldwide.

Introduction

One of the major challenges facing mankind today is to provide clean water to a vast majority of the population around the world. The need for clean water is particularly critical in developing countries. Rivers, canals, estuaries and other water-bodies are being constantly polluted due to indiscriminate discharge of industrial effluents as well as other anthropogenic activities and natural processes. In the latter, unknown geochemical processes have contaminated ground water with arsenic in many counties. Highly developed countries are also experiencing a critical need for wastewater cleaning because of an ever-increasing population, urbanization and climatic changes.

Both the treatment of wastewater prior to discharge and the reuse of wastewater have become absolute necessities. There is, therefore, an urgent need to develop innovative, more effective and inexpensive techniques for treatment of wastewater.

A wide range of wastewater treatment techniques are known, which includes biological processes for nitrification, denitrification and phosphorus removal, as well as a range of physico-chemical processes that require chemical addition. The commonly used physico-chemical treatment processes are filtration, air stripping, ion exchange, chemical precipitation, chemical oxidation, carbon adsorption, ultrafiltration, reverse osmosis, electrodialysis, volatilization and gas stripping.

Electrocoagulation is the passing of an electrical current through water. It is a proven and very effective process for the removal of contaminants in that water. Electrocoagulation systems have been in existence for many years and were originally patented by Dietrich in 1906. Our Electrocoagulation systems are very much more refined with high efficiency rates of contaminant removal at low capital and operating costs. Electrocoagulation is based upon scientific principles involving the responses of water-based contaminants to strong electric fields and electrically induced oxidation & reduction reactions. The process is able to remove over 99% of some heavy cations, and also appears to be able to electrocute microorganisms in the water. Colloids are charged and precipitated. Significant amounts of other ions and colloids are also removed. Oily emulsions are broken.

ที่มา : (บางส่วน)  http://en.wikipedia.org/wiki/Electrocoagulation#Electrocoagulation

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