文档介绍：Pollution characteristics and Evaluation of Surface
Sediment of Nanhu Lake
Wei Ming-rong, Jiang Ying-he Wei Ming-rong, Wei Cai-chun, Xu Li-wei
Civil Engineering & Architecture Department The Guangxi Key Laboratory of Environmental Engineering,
Wuhan University of Technology Protection and Assessment
Wuhan, China Guilin, China
Abstract— Twelve samples of surface sediment in Nanhu Lake,
II. MATERIALS AND METHODS
Wuhan city were collected and the concentrations anic
Matter (OM), Total Nitrogen (TN), Total Phosphorus (TP), A. Sample collection and processing
+ -
ammonia nitrogen (NH4 -N) and nitrate nitrogen (NO3 -N) were Twelve surface sediments were collected from Nanhu Lake
as figure 1. Sample point B12 was 50m away from the
determined; the average result were %, 3972, 1712, 897 and largest sewage outlet—Xinfucun in Nanhu Lake and the
20mg/kg separately. Cd, Hg, As, Cu, Pb, Cr and Zn were othersample points were arranged evenly in the lake.
Instrument for collection is Multi-Purpose Sample Set
determined too; and the average value were , , ,
imported from Holland with model number . The
, , and respectively. The content of pH, depth of sampling was 15cm. After collection sediments
TN, TP and NH +-N in overlying water and pore water were were taken back quickly to the lab. Afte