http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/3739 2026-05-15T14:22:13Z 2026-05-15T14:22:13Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/5130 2016-07-27T11:46:39Z 1987-01-01T00:00:00Z

Recycling Plant for Oil Filters and Other Oily Waste Materials Wherever oil-changes are made on cars, trucks or other vehicles, that also means the exchange of used filters. Exchanges and maintenance works cause additional oily waste materials, such as oil cans, cleaning rags and saw dust. Nowadays these waste materials are to a large extent either deposited or burnt. Their quantity is alarmingly high, and so is their potential danger to the environment. In the Federal Republic of Germany alone this quantity amounts to approx. 160,000 cu.m per year. That leads to a great number of ecological problems.

1987-01-01T00:00:00Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/5129 2016-07-22T14:08:49Z 1987-01-01T00:00:00Z

Salt Refining Plant Sodium chloride NaCI, generally known as 'common salt' or as 'salt' for short, has had a long history as a seasoning, preserving agent and base material for a great variety of products. The compound occurs abundantly in nature, both solid in minerals or in solution. Seawater containing 3% NaCl serves as a major source for 30% of the world salt production.

1987-01-01T00:00:00Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/5128 2016-07-27T11:46:43Z 1987-01-01T00:00:00Z

Quarries for Building Materials A decisive factor for the development of any country is the availability of building materials, such as cement, chippings, ballast, asphalt etc. Without these materials no housing project can be realized nor can the infrastructure be improved. The first step for the production of building materials is the establishment and operation of quarries. When looking for a suitable quarry, one should make sure that the raw material is available in good quality and sufficient quantity and that it can be extracted without major difficulties. Thickness and hardness of the overburden and the cost of its removal must be surveyed.

1987-01-01T00:00:00Z http://dspace.ediindia.ac.in:8181/xmlui//handle/123456789/5127 2016-07-27T11:46:38Z 1987-01-01T00:00:00Z

Processing of Gravel and Sandworks No matter what kind of building activity is planned, be it houses, factories, roads, bridges, silos or just walls - gravel and sandworks are needed everywhere. In most cases desposits of raw gravel and sand contain impurities, and the extracted material must be processed to meet the quality requirements for building materials. Such impurities are mostly clay, loam, wood or coal. They can be removed by washing processes. It depends on the extent of pollution and the kind of pollution material, which process and which machine are to be applied.

1987-01-01T00:00:00Z