Information about waste water from the manufacture offibreboard is given, and in this connection a classification of suspended and dissolved impurities occurring in the waste water of fibreboard mills is made. The influence on the concentration and the total amount of such impurities are discussed as a function of the extent of closing of the process wa ter system. Various methods of treatment ...

SUMMARY: In Europe almost 80 million tons of waste are annually combusted in Waste-to-Energy plants. Solid residues generated thereby contain altogether about 69,000 t/a of Zn, of which more than 50 % accumulates in air pollution control (APC) residues. Recent research activities aiming at Zn recovery from APC residues resulted in a large scale Zn recovery plant at a Swiss waste incinerator. By...

The identification and classification of plastics plays an important role in waste management and recycling processes. Present electrical and optical sorting techniques lack the required resolution for accurate identification in a high throughput manner for a diverse set of plastics commonly found in municipal waste. In this work a multi-spectral infrared spectroscopic technique is employed to ...

Mechanical behaviour of the waste body controls many aspects of landfill lining system design and performance, including stability issues and integrity of the geosynthetic and mineral lining components. Knowledge of the likely ranges of waste mechanical properties is required to assess potential modes of failure and hence to design the landfill engineering measures. This paper provides a summar...

Much attention has been paid to the influence of the institutional form of waste collection on costs. We extend this literature in three directions by including the unit-based pricing system. First, we show that unit-based pricing systems are more important from a cost-minimizing point of view than the institutional mode of waste collection. In particular, the bag-based and frequency-based pric...

In many countries improper management of waste generated in health care facilities causes direct health harm to the community, to people working in health care facilities, and to the environment. In addition, pollution from inadequate treatment of waste can cause indirect health harm to the community. The disposal of certain types of devices should follow specific safety rules. For example, a s...

To prevent the spread of COVID-19 pandemic, 2019 has seen unprecedented demand for medical equipment and supplies. However, problem waste treatment not yet been given due attention, i.e., traditional process is done independently, it easy to share necessary information. Especially during interaction between parties minimized limit infections. evaluate current system at centers, we also refer pr...