this afternoon, we visited the sewage treatment plants in Zhouzhuang and Dianshan Lake.
When we arrived at Dianshan Lake, an employee in white clothes, while taking us away, introduced his name and the construction of Dianshan Lake.
We came to a big blue sign with some introductions about Dianshan Lake written on it: Dianshan Lake dike project was built in the early 198s, in January 215. Approved by the Ministry of Water Resources, it was made public in August 215 with a total investment of 3 million. The reinforced Dianshan Lake flood control levee and Majiagang sluice in the east are 25.6 kilometers long ...
Looking at these dense words, I can't help but think: how hard it takes these "giants" to ensure our safety!
Then, we walked into a "famous saying house". Looking in from the door, I was impressed by the words "IK is hydrophilic and far-reaching, water conservancy works everything, and nourishes people's livelihood". Upstairs, the "Famous House" is just ahead, and there are countless famous sayings on the wall. What impressed me the most is: standardizing the management of water conservancy projects and building a levee for building a clean government. The flood control levee is a security ring, and the alarm bell keeps ringing to promote low cost. Water is good for all things, and people are healthy and benefit people, but not greedy ... I deeply realize the importance of water conservancy projects to the country and people, and I can't be careless.
finally, we came to a secret room where sewage treatment was controlled. I saw a big green thing, which is called axial flow pump, specially used to overcome the resistance along the pipeline, for spraying liquid or pumping into high water tanks.
What is exciting is that we have the opportunity to come to a bridge and see how it works. At first, I saw a lot of sewage gushing out from two big circles, and then a foul smell floated up. The water that rushed out circled, like rolling, and the grass in the river seemed to be circling, which was very interesting! A classmate said, "Wait a minute, the gate will open." After 1 minutes, the gate was slowly opened, and the sewage actually obediently followed the "meaning" of the gate to receive "treatment".
Next, we went to Zhouzhuang's sewage treatment plant, where there are five pools: water intake pump house, grit chamber, biochemical tank, sedimentation tank, disinfection tank and so on.
after this day's tour, I have a deep feeling: I want to thank those employees first, who have worked so hard to purify these sewage into spotless water. Primary school students' composition-feelings about visiting a sewage treatment plant-feelings about visiting a sewage treatment plant. We should save water, protect water resources and contribute to our country!