Abstract Settling ponds are used to prevent erosion and the transport of suspended material from peat mines into downstream watercourses. In this study, …

The results show that erosion of peat sediment was strongly influenced by the amount of deposited sediment in the main …

Conventional methods for controlling water quality from drainage areas include sedimentation ponds, wetlands, etc. Sedimentation ponds typically maintain a permanent pool of water to improve water quality by settling of SS and sediment-bound pollutants. ... At peat mining sites, dissolved phosphate usually constitutes 30–50% of …

The main erosion processes affecting blanket peat can be broadly divided into sediment supply processes (e.g., freeze–thaw and desiccation), sediment transfer from hillslopes (e.g., interrill erosion, rill erosion and gully erosion), bank failures and mass …

The sedimentation ponds retain surface water to maximize the settlement of suspended peat particles prior to directing the water off-site. Once the water table has been lowered, the fields are crowned to direct water toward the field ditches, and the remaining peat area between the drainage ditches is then harrowed, leaving a layer of loose ...

sedimentation ponds. What will become of the peat that has been removed from these ponds? • If overland flow is proposed, include drawings of the direction of flow, dimensions of the flow path. Describe the thickness of the organic layer, the topography, and the characteristics of the soils in the overland flow path. Peat Harvesting

The St-Charles Plain (Kent County, New Brunswick, Canada) commercial peat moss operation has been ongoing since 1983. To process the peat, a dry extraction method is used that requires extensive drainage of the peat bog. The water is directed toward sedimentation ponds, where it drains into a small brook, which feeds into a river …

45 sedimentation ponds vectors, graphics and graphic art are available royalty-free. ... Sapropel and peat in nature. Structure of pond and marsh with bottom sediments. Vector illustration EPS10. Sludge Dewatering vector icon design, Water Treatment and Purification Plant symbol, Environment Friendly Industry Sign, Desalination Biotechnology ...

The Brown equation, used worldwide in agricultural sedimentation ponds, proved to be less efficient in predicting the trapping efficiency of the basins (r = 0.67, p = 0.1, leave-one-out RMSE = 47.2%) than a MLR model using the volume of the basin, the surface of the harvested catchment and the Von Post decomposition degree of the peat …

(i.e. water released from sedimentation ponds); and 2) to assess potential impacts of peat operations to water quality in the receiving environment. Results of monitoring will allow operators to determine changes or temporal trends in release water quality and receiving water quality resulting from peat operations. Title:

The method decreases the suspended solids (SS) and nutrient loads by reducing flow velocities, and improving the settling of sediment particles. The …

Pond maintenance alone failed to ensure optimal sedimentation pond efficiency. In 2008, SSC increased a few days after pond maintenance. The NB SSC 25 mg/L guideline was exceeded at all stations ...

Sedimentation ponds are therefore recognised as a robust and cheap way of protecting nearby water bodies. Hence, thousands of sedimentation ponds have been built along Norwegian and European major roads (Meland, 2016). In Norway some sedimentation ponds receive tunnel wash water, and this is the case for one of the …

Table 1 General characteristics of the study sites Growing conditions, % of catchment area sedimentation pond, m Dominant soil texture Maintenance works Catchment area, ha Coordinates (N; E) Forests on wet peat Forests on drained Forests on drained Length of the Forests on wet Forests on dry Study area mineral soils

Settling ponds are used to prevent erosion and the transport of suspended material from peat mines into downstream watercourses. In this study, three different sedimentation ponds were compared under laboratory conditions. The ponds were built on 1/10 and 1/20 scales. Two types of experiments were carried out.

Peat filtration, field ditches and sedimentation basins for the purification of runoff water from peat mining areas @inproceedings{Ihme1991PeatFF, title={Peat filtration, field ditches and sedimentation basins for the purification of runoff water from peat mining areas}, author={Raimo Ihme and Kaisa Heikkinen and Esko Lakso}, year={1991}, url ...

An in-field evaluation of the effectiveness of sediment ponds in reducing suspended solids in the runoff from surface mining activities was performed. Nine selected sedimentation ponds in the three eastern coal-mining States of Pennsylvania, West ia, and Kentucky were sampled under two different operating conditions--a baseline and a ...

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The use of constructed wetlands for the treatment of the runoff waters from field cultivation and peat production in boreal climate is reviewed and the potential significance of CWs in water protection is dealt with at catchment scale. ... In this study, three different sedimentation ponds were … Expand. 12. 2 Excerpts; Save. Flow …

The efficiency of sedimentation ponds to retain solid material has been monitored for a considerable period of time in peat production areas in Ireland. The efficiency of sedimentation ponds in six forestry board districts was investigated during summer 1988. The variation in the sediment accumulation of the sedimentation ponds was …

Three sedimentation ponds were constructed to control the quality of runoff from Bog 567, a peat extraction site located 10 km northeast of Lameque, New Brunswick. Monitoring, conducted over a period of twelve months, consisted of measuring the rate of stream flow, the level of suspended sediments, the rate of peat accumulation in the …

Find Sedimentation Ponds stock images in HD and millions of other royalty-free stock photos, 3D objects, illustrations and vectors in the Shutterstock collection. ... Moor landscape, pond with sedimentation zone, swingrass from peat moss (Sphagnum), Sundew (Drosera) and White beak-sedge (Rhynchospora alba), nature reserve …

The method was tested in two heavily drained adjacent peat harvesting areas suffering considerable erosion. The peak flows were cut by 27–87%, the SS load by 61–94%, the total nitrogen (N tot) ... constructed floodplains and sedimentation ponds." Boreal Environ. Res., 5(1), 81–94. Google Scholar.

Sediment. 1. Introduction. Stormwater and peak runoff detention and retention methods have been used for water management in urban drained areas (e.g. …

@article{osti_5492038, title = {Are surface coal mine sediment ponds working}, author = {Poe, M L and Betson, R P}, abstractNote = {Flowrates and storm generated water quality data were collected at sedimentation ponds on four surface mines in the states of Pennsylvania, Maryland, and West ia. The water quality data were analyzed for …

The St-Charles Plain (Kent County, New Brunswick, Canada) commercial peat moss operation has been ongoing since 1983. To process the peat, a dry extraction method is used that requires extensive drainage of the peat bog. The water is directed toward sedimentation ponds, where it drains into a small …

The Brown equation, used worldwide in agricultural sedimentation ponds, proved to be less efficient in predicting the trapping efficiency of the basins (r = 0.67, p = 0.1, leave-one-out RMSE = 47.2%) than a MLR model using the volume of the basin, the surface of the harvested catchment and the Von Post decomposition degree of the peat …

Soil Science. Agricultural Science. Peat. Suspended Sediment Concentrations Downstream of a Harvested Peat Bog: Analysis and Preliminary …

Evergreen Bog Peat Harvesting Environment Act Proposal . Dear Ms. Dagdick: ... 1.0 DRAINAGE, SEDIMENTATION PONDS AND EFFLUENT Please provide information on how the licence requirements regarding sedimentation ponds will be met. As described in section 2.5.4 of the EAP, the Evergreen 1 harvest area will tie into the existing drainage …