1. Capacity of cement production line limits the scale of solid waste treating capacity. Great wall Cement kiln capacity for treating solid waste should match the capacity of cement production line; it cannot enlarge the treating capacity without limits. The data from current solid waste treating project with cement kiln, the volume of solid waste without pre-treatment is about 3% while the volume of solid waste with pre-treatment is about 10-15%.

2. Pay more attention to living rubbish and sludge with high content of chlorine,

Sodium and potassium which may bring harm to our cement quality. This is to say, the core of cement industry is to produce qualified cement, once the quality of cement is bad, its achievement is obvious.

3. During treatment of living rubbish and sludge, solid waste, etc. our country has serious exhausting control standard which is much higher than that is executed during cement production, if cement industries developed to treat solid waste in large scale, it may execute more environmental standard.

4. Adding living rubbish, sludge to produce cement may have specific risk.

Because different product may comply with various standards, so consumer still cannot accept it. For example fertilizer produced using living rubbish and sludge, its various index comply with quality demands, but when consumer know living rubbish and sludge is added, sales is effected immediately, such condition has many example in domestic and foreign cases.

Comprehensive evaluation of the advantage, limits and possible elements of cement kiln for solid waste treatment, cement industry can consider treating some living rubbish and sludge by its condition, but it is better not to expend in large scale as if do like that, it may cause the opposite situation.

Cement production and solid waste is complete different area, now they are connected together causing possible cooperation. Now suggest cement enterprise should strengthen the cooperation and communication with solid waste industry, stepping into the way of socialized cooperation & professional production, integrate social resources, take industrial advantage and promote industrial, scientific and high efficient development.