Hampshire College

About: Hampshire College is a education organization based out in Amherst Center, Massachusetts, United States. It is known for research contribution in the topics: Genetic programming & Population. The organization has 461 authors who have published 998 publications receiving 40827 citations.

Evaluating the performance of a decentralized graywater treatment system in a living building at Hampshire College, Amherst, MA, USA.

Abstract: Decentralized graywater treatment systems are growing in popularity as the threat of water scarcity rises and wastewater's potential as a resource is recognized. In 2016, Hampshire College in Amherst, Massachusetts, completed construction of the R.W. Kern Center, a Living Building that incorporates physical filters and two constructed wetlands to treat graywater produced on-site. Grab samples of graywater were collected from four sites between August 2016 and March 2019. This study characterizes mixed graywater from all the building's fixtures and graywater from a coffee bar. Untreated mixed graywater was observed with median concentrations of 180 mg/L for total suspended solids (TSS), 190 mg/L for biochemical oxygen demand (BOD5 ), and 15 mg/L for total nitrogen (TN), primarily in the form of total Kjeldahl nitrogen (TKN). Concentrations of TSS, BOD5 , and TN were reduced by 92%, 96%, and 73%, respectively, by the Kern Center's treatment system. Preliminary data from coffee bar effluent establish a wide range of high-strength graywater quality. Because Living Buildings by design explore the connections between people and their built environments, this study also found that the behaviors of building occupants, particularly the cafe staff, had a direct impact on the functioning of the Kern Center's decentralized graywater treatment system. PRACTITIONER POINTS: On-site decentralized graywater treatment systems paired with waterless composting toilets are effective in reducing a building's water use and in meeting net-zero water goals. Constructed wetlands can effectively treat graywater produced in a central campus building with public spaces, office spaces, and a coffee bar. On-site decentralized graywater treatment systems require cooperation from both building occupants and water operators in order to function properly.

Teaching critical thinking skills in physiology.

Abstract: This is a report of a workshop presented at Experimental Biology '99 on April 18, 1999, in Washington, DC.

A variation on the theme of nicomachus

Abstract: In this paper, we prove some conjectures of K. Stolarsky concerning the first and third moments of the Beatty sequences with the golden section and its square.