Other stories by PhD

  • A Fitting Solution

    Although less than 2% of the nation's drinking water plants use membranes for filtration, Manitowoc Public Utilities in Wisconsin and the Kennewick Public Works Department in Washington are using the technology to produce additional clean water without significant additional expense.

  • Get what you deserve

    Each year, solid waste haulers pay hundreds of millions of dollars in franchise fees or gross receipt fees to local governments. Based on gross revenues billed to the haulers' customers, these fees compensate cities for the use of their streets and rights of way.

  • Recycle the road

    Now that energy prices are rising, with infrastructure budgets not yet adjusted to keep up with the increases, it is time look for ways to amplify our reuse of asphalt pavements where possible.

  • Save asphalt–up the RAP

    It may be time to consider means for increasing RAP content of asphalt pavement mixes even further, especially in light of the increasing oil prices that directly affect the cost of asphalt.

  • Utility microsurgery

    Those who embrace the innovation of small-hole or keyhole technology are achieving benefits and cost-savings for themselves, their stakeholders, and the municipalities where they operate.

  • Are your rates correct?

    At last week's city commission meeting, the mayor and several River City commissioners grilled you on the city's rising costs of providing solid waste collection service. Why wasn't the city able to track its costs more closely? Were costs in line with similar cities providing the same service...

  • A hot night in the big city

    In the 1950s, 30% of the world's population lived in urban areas. By 2030, 60% of the world's population will live in cities. The phenomenon of rapid urbanization is resulting in the transition of native vegetation to manmade engineered paved surfaces for roads, parking areas, sidewalks, and...