truncated gaussian simulation (tgs) is a well-known method to generate realizations of the ore domains located in a spatial sequence. in geostatistical framework geological domains are normally utilized for stationary assumption. the ability to measure the uncertainty in the exact locations of the boundaries among different geological units is a common challenge for practitioners. as a simple a...

Solid waste management practices itself is far from satisfactory, in India. Added to the above, is another problem of recent origin i.e. E-waste handling and management which has complicated waste management due to their unique properties than other solid wastes. The generation, separation, recycling and recovery of precious metals are still in its nascent state, almost all over India. In order...

The paper provides an overview of natural radionuclides in surface water and groundwater, their maximum permissible concentrations, health effects, different processes of removal (aeration, coagulation and co-precipitation, filtration, adsorption, ion exchange, membrane separation), treatment costs, and options of radioactive waste management.

Medical centers (that is, hospitals and clinics) in metropolitan areas produce substantial amounts of hazardous waste in both solid and liquid (wastewater) forms. Unless medical centers manage their waste with appropriate care, the significant hazards posed to urban residents and areas far outweigh the benefits of their services. Therefore, comprehensive environmental management programs need t...

INDIA IS FACING serious environmental problems such as waste1 ,water and air pollution due to the fast growth of urbanisation and industrialisation. The subject of solid waste management (SWM) in Hyderabad (India) represents one of particular interest for this 23rd WEDC conference on ‘partnership and innovation’. This paper will represent a unique scheme which is based on a combination of partn...

This paper addresses a rollon–rolloff waste collection vehicle routing problem which involves large containers that collect huge amounts of waste from construction sites and shopping malls. In this problem, vehicles could only move one container at a time between customers’ locations, a depot, a disposal center, and a recycling center site. Other than a disposal center, a recycling ...

Determination of 90Sr in low-level radioactive wastes (LLW) from reactors is difficult because of the presence of so many other radionuclides in samples of interest. This problem was dealt with by radiochemical separation of strontium followed by yttrium separation and Cerenkov counting of the high-energy B-particle emissions of 9oY in order to quantitate s”Sr. Separation of this important nuch...

Introduction: Nowadays, advancements in industries, technology and human welfare level have lead to accumulation of solid wastes and have endangered environmental health. Incorrect waste management intensifies this problem. Recycling and composting (transformation of organic waste to humus) are the most important ways in waste management. Health and safety of the compost is an important issue b...

Poly (phenylene-ether-ether) sulfone membrane was fabricated and characterized by efficient glycerol/biodiesel separation produced from waste cooking oils trans-esterification. The membrane preparation was processed by phase inversion technique. The morphology, Physico-chemical properties and separation behavior of membranes were studied at various PPEES concentration. A uniform surface was...

This study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth element (REE) recoveries from iron mine waste. The electron microprobe showed that high amoun...