[Extensive Green Roof Substrate Composition Based on Sludge Recycling].

The experiment was carried out to study the reasonable composition of stable anaerobic sludge in the extensive green roof growth substrate by a total of 650 mm artificial rainfall event. Combined with the N, P leaching problem of the sludge resources utilization, the quality of the effluent and the change of the nutrient content of the substrate in the process of application were investigated. The results showed that the anaerobic sludge could significantly increase the plant biomass and the average weight gain was 808%.

[Removal of Polycyclic Aromatic Hydrocarbons by Extensive Green Roofs].

In this study,four pilot-scale extensive green roof facilities with different substrate compositions were developed. In 8 rainfall events, concentrations of 16 kinds of polycyclic aromatic hydrocarbons (PAHs) in effluent of these facilities were investigated and compared with effluents of asphalt roofing, the blank control roof and rain water. Average PAHs concentrations in the effluent of these four facilities, asphalt roofing and blank control facilities were 145, 166, 151, 160, 900, 270 ng·L, respectively.

[Performance of Grass Swales for Controlling Pollution of Roadway Runoff in Field Experiments].

Two different styles of grass swales were built in new Binhu region of Hefei city to monitor the flux and quality of the influent and effluent water under actual precipitation conditions, in order to evaluate the performance of water quality purification and pollution load control for roadway runoff. The results showed that both of the grass swales could effectively remove the pollutants such as TSS, COD, Pb, Cu, Cd, Zn in roadway runoff; the median EMC removal efficiencies of TSS and COD were 67.1%, 46.

[Effects of mesenchymal stem cells transplantation on cranial suture distraction osteogenesis in growing goats].

Objective: To observe the effects of mesenchymal stem cells (MSCs)on cranial suture under mechanical strain in growing goats.

Methods: 10 growing goats were used in this study. A customized distractor was used for distraction of the coronal suture at a rate of 0.