The City of Tulare, located in California’s world renowned San Joaquin Valley, is known for its rich agricultural and dairy industries. Tulare is home to six large-scale cheese and dairy producers. Like many municipalities, the city is challenged to meet industrial requirements at a reasonable cost while maintaining harmonious relationships with the surrounding community.

The Commission for the Eradication and Prevention of Screwworm (COPEG), created by a cooperative agreement between the Republic of Panama and the United States of America, safeguards Panama and the rest of the countries in Central and North America from screwworm re-infestation.

Slave Lake Pulp, a subsidiary of West Fraser Mills Ltd., is a 240,000-tonne-per-year Bleached-Chemi-Thermo-Mechanical Pulp (BCTMP) mill located in northern Alberta, Canada. The mill primarily processes aspen to produce market pulp for the global market.

Since 1956, Rothenbühler Cheesemakers has been producing delicious cheese using all natural ingredients and 100% Grade-A milk. Formerly known as Middlefield Cheese, the family-owned company is one of the largest Swiss cheese manufacturers in the United States. Its plant in Middlefield, Ohio, USA, produces five Swiss cheese varieties, as well as high-quality whey ingredient products.

The City of Portage la Prairie is a small but progressive community located in Manitoba, Canada. The city is situated in the heart of the province’s farming belt, about 75 kilometers (47 miles) west of Winnipeg.

The client makes several types of confectionery products at its facility. Its wastewater was being treated in a dissolved air flotation (DAF) system, followed by a dual-tank sequencing batch reactor (SBR) activated sludge system.

The confectionery manufacturer, located in Virginia, was faced with having to establish on-site wastewater pretreatment at its facility. A planned expansion and an overloaded publicly owned treatment works (POTW) led local authorities to require wastewater pretreatment in order to meet discharge limits of 250 mg/l for both biochemical oxygen demand (BOD) and total suspended solids (TSS).

An ADI Systems client was equipped with an anaerobic wastewater treatment system that consisted of an equalization tank, three hybrid anaerobic reactors, a degas tower, and a clarifier. This system was not meeting the client’s needs, as it was only removing approximately 60% of the BOD. Sludge settleability and odor issues in the open clarifier also presented a problem.

The City of Tulare, USA, located in California’s world renowned San Joaquin Valley, has some of the strictest environmental regulations in the nation to protect the Golden State’s water quality. Noncompliance can be costly—up to $10,000 a day. Tulare is committed to complying with wastewater discharge requirements set forth by the California State Department of Water Resources Board.

Devondale-Murray Goulburn Co-operative Co. Limited (MG) is Australia’s largest dairy food company. Popular brands include Devondale and Liddells, which produce a variety of milk, cream, butter, spreads, yogurt, and cheese.

Lone Star Dairy is a leading producer of value-added dairy ingredients derived from locally-sourced milk. While Lone Star Dairy was already enjoying the benefits of low-rate anaerobic digestion, production capacity was driving flows and loads beyond the capacity of their existing system. Upgrades were needed to remain compliant to protect the downstream publicly owned treatment works (POTW).

Shanghai Xinlun Paper was upgrading its pulping and paper-making process. As this was taking place, new regulations came into effect that required the mill to invest in secondary wastewater treatment so it could meet stringent effluent limits of 100 mg/l chemical oxygen demand (COD), 30 mg/l biochemical oxygen demand (BOD), and 200 mg/l total suspended solids (TSS).