He et al. [16] China's iron and steel industry: Firm 2006 2008 19.2 19.8 Inputs: net fixed assets, employees, energy Desirable output: value added Undesirable output: waste water, waste gas, solid waste TFP total factor productivity, GDP gross domestic product, BOD biochemical oxygen demand, COD chemical oxygen demand, SS suspended solids, SOx sulphur oxide.
In order to improve the recycling of waste paper and metallic ions in waste water, waste art paper with high contents of fillers/adhesives was carbonized at 300, 450, and 600 °C and the resulting engineered biochars were used to recycle the aqueous Pb II).
Li and Bao [ 22] analyzed the trend changes in the "three wastes" (gas waste, water waste, and residues waste) in eastern, western, and central China.
This year, for the first time since 1998, the grade has risen from a miserable D to a slightly less awful D+, thanks to increased spending in six of the 16 categories measured: bridges, drinking water, railways, roads, solid waste and waste water.
And there are also problems of, for example, the lack of treatment of human waste, the issues of waste water that are polluting the water that it is intended for people to drink.
By targeting and monitoring its approach to land, energy and chemical use, greenhouse gas emissions, waste water discharge and solid waste, Nike aims to drive down the impact its products have before the product goes into manufacturing.
It's my right to waste water.
Much of that water becomes waste water, which creates problems.
The use of solid waste and waste water led to N, P and metals accumulation in soil.
