句子没有错误。习语take sth for granted 可以后接as介词短语，as介词短语是修饰granted（=given）的方式状语。即take A for granted as B.  意为：想当然地认为A就是B。COCA语料库有很多类似例句：

Moreover, higher education reveres tradition, which is too often taken for granted as a signifier of quality.

However, I never was inside what I grew up taking for granted as " the Air Force museum.

We take that for granted as human beings.

The church and traditional religious commitments are no longer taken for granted as part of North American people's lives.

Most prospective parents take the process of procreation for granted as natural and practically automatic.

Modern societies have tended to take science for granted as a way of knowing, ordering and controlling the world. 

句子整体框架结构：名词短语(a lot of things)+that/which定语从句+ can actually be recycled +方式状语(in one way or another)

以上句子语法结构分析如下

A lot of things 【主语】//【引导定语从句关系代词that/which 省略了】we take for granted as trash, 【修饰主语的后置定语】 //such as newspaper, magazines, old computers and cellphones【主语的同位语】, //can actually be recycled【谓语动词】// in one way or another【方式状语】.

备注(1)：take+名词/代词+ for granted as+名词   视某物/某事为某物/某事是理所当然的事情

备注(2):关系代词that/which指代前面名词“a lot of things”并在定语从句充当谓语动词“take的宾语成分”

A lot of the things we take for granted as trash, such as newspaper, magazines, old computers and cellphones, can actually be recycled in one way or another.

参考译文：很多我们理所当然认为是垃圾的东西，例如报纸、杂志、旧电脑和手机，实际上都是可以以这样或那样的方式进行回收利用的。

take sth/sb for granted 是普通短语（phrase），take it for granted 才是习语（idiom），二者不可混为一谈。牢记：习语是固定的，不可更改，不可替换字词（除非语种不同），也不可省略其中任何词语，比如把take it for granted 省略为 take for granted。

take sth/sb for granted（普通短语）的意思是：
to expect that someone or something will always be there when you need them and never think how important or useful they are

而take it for granted （习惯用语），美语为take it for law的意思是：

to believe that something is true without making sure

一家之言，仅供参考

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