Richards Ellen Swallow

Ellen Swallow Richards

Rich·ards

R5253270 (rĭch′ərdz), Ellen Swallow 1842-1911. American chemist and educator whose research on water quality led to the establishment of the first modern sewage treatment plant, and who founded the discipline of home economics.

Rich·ards

(rĭch′ərdz), Ellen Swallow 1842-1911. American chemist and educator. Her survey of water quality in Massachusetts led to the establishment of the first water quality standards in the US and the first modern sewage treatment plant.

单词	richards ellen swallow
释义	Richards Ellen Swallow Ellen Swallow Richards Rich·ards R5253270 (rĭch′ərdz), Ellen Swallow 1842-1911. American chemist and educator whose research on water quality led to the establishment of the first modern sewage treatment plant, and who founded the discipline of home economics. Rich·ards (rĭch′ərdz), Ellen Swallow 1842-1911. American chemist and educator. Her survey of water quality in Massachusetts led to the establishment of the first water quality standards in the US and the first modern sewage treatment plant.
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