|
| Component Analysis and Pollution Characteristics of Domestic Waste in Rural Area of Guangdong Province, China |
| |
| View Full Text View/Add Comment Download reader |
| KeyWord:Guangdong Province; rural area; domestic waste; component; heavy metal |
|
|
| Hits: 1918 |
| Download times: 1940 |
| Abstract: |
| In order to understand the nature of domestic garbage generated in rural Guangdong today, samples were collected from rural families of four counties in Guangdong Province including Shixing, Renhua which is located in Shaoguan City in the north, Xinhui and Heshan which is located in Jiangmen City in the mid-south. The composition, moisture content, total nitrogen（TN）, total phosphorus（TP）, total potassium（TK） and heavy mental in the waste samples were measured. The results showed that the organic components which could be returned to field through composting such as food waste, kitchen waste and plant residues in the garbage, reached 62.62% of the total weight. The flammable part of the garbage including plastics, paper and cloth was accounted for 29.97% of the total weight. The non-degradable part such as metal, glass and bricks was 6.61%. Hazardous materials such as battery and packing material for pesticide and fertilizer, was only 0.81% of the total weight. The organic part of the garbage from two counties in Shaoguan was significantly higher than that from the two counties in Jiangmen City. The content of waste plastics in garbage from Jiangmen was significantly higher than that from Shaoguan. The moisture content in the organic part was quite high, while moisture contents in other parts were relatively low. The TN, TP, TK, organic matter and the main heavy metal in the organic parts of the waste met the control standards set for the wastes used in agriculture. The heavy metal content in organic part reached the second level standard for soil environment quality. It indicated that agricultural utilization of the organic part of waste in rural Guangdong province is not only feasible, but also safe. To make good use of the rural garbage in different ways such as composting, or biogas generation according to the specific situation of the region not only can reduced pollution caused by garbage, but also can realize the reuse, reduction and recycle of the waste. |
|
|
|
