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How Water Filters Remove Microplastics Without Chemicals
净水器如何不靠化学品去除微塑料
精读先不看文字，完整听一遍。
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Advanced filters use ceramic or hollow-fiber membranes with pores smaller than 0.1 microns.高级过滤器采用孔径小于0.1微米的陶瓷或中空纤维膜。
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Since most microplastics range from 0.1 to 5,000 microns, physical sieving traps nearly all.由于大多数微塑料粒径为0.1至5000微米，物理筛分可截留几乎全部微塑料。
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Activated carbon layers adsorb dissolved pollutants like chlorine and pesticides alongside particles.活性炭层可吸附氯、农药等溶解性污染物及颗粒物。
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Pressure forces tap water through the membrane while contaminants build up on the outer surface.水压驱动自来水穿过膜，污染物则积聚在膜外表面。
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Backwashing reverses flow periodically to flush trapped debris and restore flow rate.反冲洗定期逆向水流，冲走截留杂质，恢复通量。
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Lab tests confirm removal rates above 99.9% for common polyethylene and polyester fragments.实验室测试证实，对常见聚乙烯和聚酯碎片的去除率超过99.9%。
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No electricity or chemicals are needed—just household water pressure and regular cartridge changes.无需电力或化学品，仅依靠家庭水压及定期更换滤芯。
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Used cartridges are recyclable in some regions, though collection programs remain limited globally.部分地区的废旧滤芯可回收，但全球范围内的回收项目仍十分有限。
精读 · 大约 10 分钟
听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。
③ 学 · 重点表达
- Activated carbon layers adsorb dissolved pollutants like chlorine and pesticides alongside particles. 活性炭层可吸附氯、农药等溶解性污染物及颗粒物。
- Backwashing reverses flow periodically to flush trapped debris and restore flow rate. 反冲洗定期逆向水流，冲走截留杂质，恢复通量。
- Advanced filters use ceramic or hollow-fiber membranes with pores smaller than 0.1 microns. 高级过滤器采用孔径小于0.1微米的陶瓷或中空纤维膜。
④ 懂 · 选一选
⑤ 今天会说这一句
Activated carbon layers adsorb dissolved pollutants like chlorine and pesticides alongside particles.
⑥ 跟读并录音
Activated carbon layers adsorb dissolved pollutants like chlorine and pesticides alongside particles.
第一版：录下来、回听、再听标准音。系统打分以后再加。
⑦ 说 · 自己来一句
用今天的表达，自己说一句。
例子：Activated carbon layers adsorb dissolved pollutants like chlorine and pesticides alongside particles.
已记下。连续天数以后会显示在课表里。
陈老师指导
课程开发中，敬请期待。成人和孩子都可以先自学听读、精读。
这边的讲解音轨还在做。想先跟着老师走完固定 30 课，可以去陈老师带读社（和自学通行不是同一份会员）。
课程开发中，敬请期待。