Abstract: An exemplary method of treating nitrogen-contaminated wastewaters, especially those with high ammonia concentrations, according to the invention includes the steps of ammonia degassing and recapture, and of nutrient assimilation with microalgae. Organic nitrogen, organic carbon, phosphorus, heavy metals and other compounds may also be removed in different embodiments of the invention. Examples of applicable wastewaters include landfill leachate, municipal solid waste anaerobic digester effluent, agricultural anaerobic digester effluent, municipal wastewaters, agricultural wastewaters, and other similarly contaminated wastewaters.

Abstract: A swimming pool skimmer basket and chlorinator includes a basket and a removable divider that partitions the basket into a chlorine tablet compartment below and a debris compartment above. The basket is cylindrical with a flat base and has a plurality of apertures for passing water. The divider is a round disk with a plurality of apertures for passing water from the debris compartment to the tablet compartment. The disk has a handle with a vertical post and a cross bar. A latch retains the divider in the basket so the handle can pull the basket from the skimmer well. The latch includes protrusions from the ends of the cross bar that fit into corresponding depressions in the basket wall.