A citrus plant struggled with poor settling in the clarifier of its wastewater treatment, which caused the sludge blanket to remain high. Even at a low flow rate of 1.2 million gallons per day (MGD), the high sludge blanked allowed less than 18” of free board. The slightest flow increase caused solids to carry over the weir with the effluent. Since the citrus plant frequently produced wastewater flows 1.5 to 2.5 MGD, the wastewater treatment plant continued to suffer from solids washout and clarifier effluent total suspended solids (TSS) excursions. The citrus plant wastewater treatment was a 6 million gallon per day (MGD) traditional aeration system with secondary clarification.
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A plastic manufacturer in Taiwan needed a new process to efficiently treat elevated incoming chemical oxygen demand (COD) to comply with stringent 
Each year a summer camp in Utah becomes inundated with campers. The camp’s wastewater treatment plant goes dormant during the winter months with only occasional flows. The biomass becomes very inactive and in years past became overloaded and upset when the high organic load arrived at the plant at the beginning of the camping season. After battling with the plant year after year to get it to accommodate the high spring load and function correctly, the operator looked for a way to jump-start the system. 
The Food and Agriculture Organization of the United Nations sponsors World Soil Day every December 5 to focus attention on the importance of healthy soil and the sustainable management of soil resources. Sponsored every year since 2014, this year’s theme focuses on soil pollution. Here is an excerpt from the 
