Re-Assessing an Old Problem - Acid Mine Drainage
Many state, interstate, and federal agencies have responsibilities in the control of acid mine drainage pollution or are involved with industry-related activities. The federal agency with...

Dichromate Versus Ceric Sulphate in COD Determinations
The oxidizing powers of dichromate and ceric sulphate are investigated with various catalysts. The study includes 32 pure organic compounds of various chemical structures. The highest...

Effects of Hydrogen Sulfide on Concrete Structures
Process of disintegration is explained; probable factors which cause disintegration in certain areas while in other areas, with seemingly same conditions, no disintegration occurs; more...

Installation of Drain Tile for Subsurface Drainage
Soil Conservation Service provided technical assistance on installation of 24,059 mi of tile drains during 1959 fiscal year; tile used in surface drainage and current procedures in making...

Installation of Drain Tile for Subsurface Drainage
Soil Conservation Service provided technical assistance on installation of 24,059 mi of tile drains during 1959 fiscal year; tile used in surface drainage and current procedures in making...

A Review of the Engineering Charateristics of Peat
Physical and mechanical properties of peat; classification, percent ash, acidity reaction, density and specific gravity, water holding capacity, void ratio and shrinkage on drying, permeability,...

The Physical Qualities of Acid Open-Hearth Nickel Steel, As Compared With Carbon Steel of Similar Tensile Strength
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