Municipal sewers, sewage conduits, bilge wells and septic-tanks are containing and conveying sanitary and industrial sewage in urban areas. However, being sealed in such a relatively closed space, organic and inorganic matters in waste water can be resolved by microbial actions under anaerobic conditions to generate toxic and combustible gases….
Beer has been a popular drink among all. Especially in summer, a beer with BBQ can be the best refreshment. For now there are many breweries producing various kinds of bear, but also producing problems of waste water treatment. The waste water which contains large amounts of organic pollutants, are…
On March 5th, the first session of the 13th NPC was held in Beijing. In the government work report, the prime minister clearly mentioned that preferential policies for vehicle purchase tax of new-energy vehicles would be prolonged for three years, and restriction policies on second-hand vehicle migration would be comprehensively…
