During 2019-22, the annual income of the farm increased by 10 percent, with 20 percent cost saving and about 4,000 liters of wastewater-contained spray residue, the farm said.

该农场表示，2019-22年，该农场的年收入增长了10%，节省了20%的成本，约4000升废水含有喷雾残留物。

"CGNPG said the Daya Bay plant will always be running at full power to provide safe and stable power to Hong Kong, with no residue or carbon emissions.

中国广核集团表示，为了向香港提供安全稳定的电力，不会产生任何残余物或碳排放，该工厂将始终满功率运行。

After recycling, the residue of distillers grains can be further processed into organic fertilizers.

"Over 75 percent of the residue of distillers grains are organic matters, much higher than the 40 percent standard set by the nation.

Reuse rates of waste such as bauxite residue and phosphogypsum are still relatively low.

For instance, it sells over 80 percent of the total sold in China of 100-day cereal-fed chilled beef imported from Australia; and it sells only those imported cherries with fruit diameter above 28 millimeters and strawberries that have passed 94 pesticide residue testing processes, according to the company.

The sale is a residue of Intel's inability to catch up with Qualcomm in the business of making chips for smartphone modems.

Local authorities also carried out investigations on solid waste, clearing up 331 tonnes of general solid waste and 890,000 cubic meters of industrial residue.

As the energy required for the entire process is generated from the residue instead of fossil-based sources, the technology could reduce greenhouse gas emissions by about 95 percent compared with fossil fuels, according to Clariant.

The park also has a testing room for checking the level of heavy metal and pesticide residue in products and works with third-party testing institutions for more sophisticated tests.

Biotechnology opens the path to a bio-based society in which renewable agricultural residue is converted into biochemicals and is partly a substitute for the role petrochemical industries have played since the Industrial Revolution, said Han Jianxin, a professor at the School of Economics and Management of Beijing University of Chemical Technology.

Xiao added that sites where construction residue was disposed of must be cultivated into orchards or arable land, which not only reduces the effect on the environment, but can create new agricultural businesses for local farmers.

For roses, it checks on the glossiness of the flowers, if there is any physical damage during processing and if there are any pests or pesticide residue.

In addition to buying equipment to test pesticides on their own, officials from the Customs and agricultural and rural affairs authorities come to our village every half year to get samples from our greenhouses and bring them back to their labs for testing, said Li, adding that the color peppers grown in the village have never tested positive for pesticide residue.

On the anvil are technological upgrades and organic farming to overcome concerns like residue of pesticides and traces of chrome in processed tea leaves, which should help comply with stringent Chinese standards.