INTRODUCTION A prototype of a swine waste treatment system for a 20-25 sows operation was investigated for its potential of odor control, byproduct utilization and treated wastewater reuse. The high solid portion of the swine waste ranging from 4% to 8% TS was treated and stabilized by the anaerobic process with an HRT (hydraulic retention time) of 32 days. The diluted liquid portion from raw a...

A process for the valorization of seagrass residues has been developed, aiming to investigate its potential as a phosphate adsorbent and production added-value products, which can be assessed in agricultural applications. Posidonia oceanica were thermally treated (500 °C, 1 h) tested an from real wastewater. Chemical leaching experiments dewatered anaerobic sludge (DWAS) conducted, evaluating s...

In the 21st century the fresh water scarcity increased very rapidly due to the urbanization and industrialization process. In these conditions the urban wastewater plays an important role in the water usage criteria. In this aspect, in all the major cities, wastewater treatment plants have been constructed to treat the urban wastewater in view of decreasing the water scarcity. The presence of n...

AlgaeSim, a dynamic multiple-systems (C, N, P) mass balance model, was developed to explore the potential for algae biomass production from wastewater by coupling two photobioreactors into the main treatment train at a municipal wastewater resource recovery facility (WRRF) in Tampa, Florida. The scoping model examined the synergy between algae cultivation and wastewater treatment through algal ...

Phosphorus (P) is one of the primary nutrients generating eutrophication in aquatic systems1. To prevent eutrophication, municipal or agricultural wastewaters are treated to reduce the phosphorus concentrations in the wastewater reaching surface water streams. While unregulated P is a pollutant in a water body, phosphorous is a useful resource in agricultural fertilizers, food supply, and indus...

introduction water scarcity has led to the search for alternative water resources. one solution is the recycling of wastewater for irrigation. wastewater treatment is often based on biological systems such as activated sludge or other engineered units in urban areas. in rural areas, low-cost, environmentally-friendly alternative treatments such as constructed wetlands (cw), are more common. cws...

This paper discusses the development of control algorithms for the urban wastewater system. This system is considered to comprise of sewer system, wastewater treatment plant and receiving watercourse. Since control actions are affecting the water quality in the river, river water quality based objectives, rather than conventional criteria such as overflow volumes or loads, are applied in this s...

introduction: reuse of wastewater for agricultural irrigation is increasing due to an increased demand for water resources in different parts of the world. almost 70% of deviated water from rivers and pumped groundwater is used for agriculture. if wastewater is used for irrigation in agriculture, then the amount of discharged water from natural sources will be decreased and the flow of wastewat...

Introduction Hanoi is currently undergoing a process of intensive industrialization and modernization. The population in the smaller Hanoi urban zone has risen dramatically from 300,000 in 1954 to its current population of more than 1.7 million which is 60% of the total population in the area of greater Hanoi. It is predicted that this will rise to 2.5 million amongst 4.5 million of total popul...