Pre-treatment of olive mill wastewaters at laboratory and mill scale and subsequent use in agriculture: Legislative framework and proposed soil quality indicators

► Evaluation of low cost pre-treatment options for OMW. ► Effect of pre-treated OMW application on soil and plant growth. ► Long term impacts of OMW application on soils. ► Overview of EU legislation for OMW use in agriculture. ► Set up of indicators to define a code of good practice for OMW application.