Quantitative information or data is based on quantities obtained using a quantifiable measurement process. In contrast, qualitative information records qualities that are descriptive, subjective or difficult to measure.
European small and medium-sized enterprises (SMEs) are developing a more environment-friendly and energy-efficient way of treating sewage sludge. This will help solve the challenge of how to deal with growing levels of sewage sludge in the face of increasingly stringent environmental legislation.
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