The problem is a lot of this does not biodegrade.

他说：“问题是很多这种垃圾不能被生物降价。

PBS is hydro-biodegradable and begins to biodegrade via a hydrolysis mechanism.

PBS是水生物降解和生物降解开始通过水解机制。

Through PVA is excellent size, it is difficult to biodegrade and pollutes environment.

PVA虽上浆性能优良，但不易生物降解，严重污染环境。

Then they're mixed with microbes, ground up, and poured in long, covered rows to biodegrade for a month.

然后，这些废物里搀进微生物，碾碎，再注入一个长形的有盖子的池子里沤上一个月。

Unlike some bioplastics, it is a drop that will neither compost nor biodegrade, though it will be recyclable.

不同于一些生物塑料，是一种既不能堆肥也无法生物降解的物质，尽管可以进行回收利用。