Performance of an ecological treatment system at three strengths of dairy wastewater loading

On-farm treatment of dairy soiled water using aerobic woodchip filters

“…271 This is similar to the decrease of 35 % achieved by Morgan and Martin (2008) in a 272 study investigating DSW treatment using an ecological treatment system of aerobic 273 and anaerobic reactors and subsurface wetlands. Using the Langmuir isotherm, the 274 maximum mass of P adsorbed per mass of wood was calculated to be 1,958 mg P kg -1 275 woodchip (Figure 3).…”

Nitrogen removal of a Myriophyllum elatinoides purification system for treating piggery wastewater in karst region

“…The changes in NH4 + -N and TN concentrations indicated that wastewater strengths affected the N removal efficiency in M. aquaticum mesocosms. This phenomenon was consistent with the changes in N concentrations in three strengths of dairy wastewater treated by ecological treatment systems [11]. Figure 3 The biomass of M. aquaticum Figure 4 The water content of M. aquaticum…”

“…In previous studies, not only are these plants able to uptake the N from the wastewater, but the microbial processes in the sediments of these plant purification systems remove primarily N [14]. The removal of N from aquatic environments by denitrification has been reported to be particularly important for coastal sediments [11,15,16]. Finally, based on the results of this study, potential benefits of the integration of eco-wetland into agricultural wastewater to reduce N concentrations are apparent.…”

Seasonal Performance of Sequencing Batch Biofilm Reactors and Ecosystem Sewage Treatment Hybrid Processes in Small Towns of the Three Gorges Reservoir Area in China

“…Highly concentrated sewage treated by ecosystem processes typically results in poor and unsteady effluent quality (17). In the case of increasingly scarce land resources, using single ecosystem treatment for small-town sewerage also presents problems such as large area coverage, poor capability of resisting to the impact load, and unstable effluent water quality (9,14,22,28).…”