Essays on Ion Exchange

Executive Summary

Eldredge, Inc. is a major provider of by-product management services with the specific goal of performing these services in a responsible and environmentally conscious manner. With Eldredge’s multi-disciplined professional staff, field technicians and logistics specialists, Eldredge offers a complete spectrum of environmental services. Eldredge Inc. is headquartered in West Chester, PA and it provides services in the industrial, refinery, commercial, government, and utility markets. Eldredge, Inc. operates four main business units including: 1) Waste Transportation 2) Industrial Field Services 3) By-Product & Waste sourcing 4) Oil Reclamation & Water Treatment Eldredge’s facility is permitted to handle an array of ...

Explain Hardness of Water

Explain Hardness of Water The water that occurs in nature always contains salts, which exist in water as positive and negative ions. The salinity of fresh water is 1000 mg/L (1L of water contains 1000 mg of various salts or ions). The typical cations present in natural water are sodium, potassium, calcium and magnesium; the most common anions are chloride, sulfate, bicarbonate, nitrates, etc. Hardness of water refers to presence of calcium and magnesium ions. When water is heated, the reaction (Tebbutt, 1999):

takes place. Calcium carbonate, unlikely other salts, is insoluble and forms precipitate. The precipitate is ...

Uranium (U) element was discovered by a German chemist, Heinrich Klaproth, in 1789. Uranium is a radioactive element with an atomic weight of 238.02891 and an atomic number of 92. The uranium element initially discovered by Heinrich was an oxide, uranium oxide. A French chemist, Eugène-Melchoir Péligot, was the first person to produce pure uranium by reacting it with potassium in a heated platinum crucible. The element’s radioactive properties were established in 1896 by a French physicist known as Antoine Henri Becquerel. Currently, uranium can be extracted from various ores such as carnotite (K2(UO2)2VO4· ...