单项选择题
Passage 1
Garbage is a rising threat to the environment. In recent years, many cities have tried to build waste incinerators (焚化炉), aiming to burn the trash while producing electricity. The practice, while popular in Europe, isn't welcomed by the Asian public. Rising concerns about possible cancer-causing release led to protests against planned incinerators in many cities.
Last year, a local company decided to expand the capacity of its landfill gas power plant, aiming to tap into the increasing amounts of trash. Instead of relying on foreign technicians, this time it opted for a self-designed plant.
The plant catches the bubbling landfill gas and shoots it into highly sophisticated machinery to clean it. Then the processed gas is burned to generate electricity – enough to meet the daily demands of 8,000 families. Feeding electricity into the power grid (输电网) has never been more welcomed by the local utility. Due to recent droughts, hydro power plants – a major energy supplier here – could not respond to the growing demand, leaving the city with a severe electricity shortage. The city began limiting air-conditioner use in commercial sites like office buildings in order to save energy.
But the landfill company is determined not to give up any creature comforts. Engineers here hope to recycle energy waste from the power plant and use it for heating and cooling their own five-floor office building. In addition to that, they plan to heat up water with the recycled energy, aiming to provide free hot showers to the nearby district that is home to many of the company’s workers. While such moves help extend local energy supplies, they can’t help in another challenge. With mountains of new trash arriving weekly, the landfill is expected to reach its storage limit 12 years earlier than planned.
The company has been struggling for ways to handle more trash while occupying less space. Later this year, it will build an advanced facility in which trash will decay and produce methane in days, instead of lying underground for years to wait for the process to happen naturally.
13. What is the passage mainly talking about?
A、A company is building solar plant.
B、A company is turning trash to energy.
C、A company is trying to build waste incinerators.
D、A company is recycling energy waste from the power plant.
