Incinerator bottom slag turned to "recycled concrete" to invade farmland, heavy metals seriously exceeded the standard, ring: EPD opened the back door

Published: 2024-06-20 Author: mysheen
Last Updated: 2024/06/20, Incinerator bottom slag turned to "recycled concrete" to invade farmland, heavy metals seriously exceeded the standard, ring: EPD opened the back door


Agricultural land in Taiwan has been dumped seriously, and recently, "low-density recycled permeable concrete" made from incinerator bottom residue has invaded farmland, especially Changhua. According to the field measurement of Huantuan in farmland, lead, zinc, copper and other heavy metals all exceeded the standard, and the content of lead was as high as more than 20,000 mg/kg, far exceeding the soil control standard of 2000 mg/kg, not to mention the food crop standard of 500mg / kg. The highest content of copper was more than 40,000 mg/kg, far exceeding the soil control standard 400mg/kg and the food crop standard 200mg/kg.

I thought that these dumping were violations, but who would have thought that there was a basis for the law? The ring group criticized that "low-density recycled permeable concrete" is a product invented by the Environmental Protection Agency, which not only helps to wash the bottom slag of the incinerator, but also "opens the back door" in the regulations, so that the bottom slag can be legally dumped in farmland.

The bottom slag from the Mucha incinerator will be treated into recycled granules in Changhua. (photo / Yang Yuyun) incinerator bottom slag is mixed with a small amount of cement to form "recycled concrete", which is dumped on farmland

Changhua County is a major agricultural county in Taiwan, but it has been heard from time to time that agricultural land has been dumped, especially along Taiwan Route 61. after surveying, legislator Hong Shenhan even ridiculed this expressway as a "broad road for waste." Changhua Huanghua League and Tainan Society Dalian continue to recommend incinerator bottom slag mixed with a small amount of cement to become "low-density recycled permeable concrete", which is dumped in Changhua farmland.

After measurement, these "concrete" have the problem of excessive heavy metals, which may seriously affect food safety and the environment, but the Changhua County Environmental Protection Bureau has repeatedly reiterated that "there is evidence in the law". In order to clarify the differences between official and private observations, legislator Hong Shenhan's Office and the Inspector General team of the Environmental Protection Department, Changhua County Environmental Protection Bureau, Changhua Environmental Protection Alliance and other units targeted one of the controversial sites on the afternoon of February 18. The use of recycled granular materials in the bottom slag of the incinerator will be investigated on the spot. (background reading: the industry earns enough, but the garbage is dumped on the farmland? Legislators asked not to cover their ears and steal the bell)

The dust from the bottom dumping site is serious, and the excessive heavy metals may affect the adjacent fields.

The controversial Fangyuan site in Changhua is expected to be built as a mushroom farm. It is located in the Fangxin section of the Taiwan 61 line, covering an area of about 920 ping. There are several land fans nearby, where the wind is extremely strong. The scene was only covered with broken sand and fine stones, and the dust was seriously dispersed. As the crime site was still filling and preparing the ground without any fence protection, coupled with the farmland next door, the strong wind from time to time made the wind and sand fly to the neighboring fields. When it comes to rainy days, the loose soil will follow the current to the farmland next door.

Such crushed sand and fine stone, what the Environmental Protection Agency calls "low-density recycled permeable concrete", but the Changhua Ring League and Social University question how there is such a solid state of "concrete" in such loose and broken earthwork. According to the XRF (hand-held X-ray fluorescence Analysis Spectrometer, X-ray Fluorescence) test by the Environmental Action team of Tainan Society, it is found that the content of heavy metals in soil exceeds the standard of agricultural soil, so why can it be used in agricultural land?