化学镀镍废液的处理方法主要有化学沉淀法、催化还原法、电解法、离子交换法等。
The main treatment methods of spent electroless nickel plating solution include chemical deposition, catalytic reduction, electrolysis, ionic exchange, etc.
近年来污水脱氮主要有以下几种基本方法：物理法、化学法、离子交换法、人工湿地法及生物法，生物法是目前应用最广泛的方法。
There are many ways such as physics, chemistry, ion exchange, man-made wet land and biology etc. wastewater nitrogen removal. The biological way is used widely now.
生物柴油是典型的可再生能源，化学催化酯交换法是目前制备生物柴油最有效的方法。
Biodiesel is a typical sustainable energy source. Transesterification of natural oils by chemical catalysis is one of the most effective ways to synthesize biodiesel.
生物柴油是典型的可再生能源，化学催化酯交换法是目前制备生物柴油最有效的方法。
Biodiesel is a typical sustainable energy source. Transesterification of natural oils by chemical catalysis is one of the most effective ways to synthesize biodiesel.
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