How plastic bottles are recycled

What works: You cover the whole cycle in the right order, including the return from the end products to the bins. You also notice that the process is cyclical, which is the key feature. Your sequence (collection → sorting → compressing → crushing → washing → pellets → raw material → products) matches the diagram, and you keep the length above 150 words.

Problems:

1. The overview is weak and partly inaccurate. The diagram shows nine numbered steps, but you write that the process has three stages. The overview is also mixed into the introduction paragraph, so it is not clearly separate.
   • ❌ "The procedure consists of 3 stages in which the plastic products are firstly gathered from trashcans."
   • ✅ "Overall, the process falls into three phases: collection and sorting, conversion into raw material, and manufacture of new goods."

1. The heating stage is misreported. The diagram says pellets are heated "to form raw material", not to "provide necessary substances".
   • ❌ "These pellets are then heated to provide necessary substances."
   • ✅ "The pellets are heated to form raw material."

1. The sorting stage is incomplete. The diagram shows workers separating suitable bottles (tick) from unsuitable ones (cross), but you only write that bottles "get sorted".
   • ❌ "they get sorted by workers"
   • ✅ "workers sort the bottles, separating suitable ones from unsuitable ones"

1. Some details are missing or vague. You leave out the plastic containers shown among the end products. You say "some clothes" where the diagram shows a T-shirt. You do not mention the stored bundles of raw material.
   • ❌ "produce some clothes, pencils, bags and also bottles"
   • ✅ "…a range of end products, including new bottles, plastic containers, T-shirts, bags and pencils"

1. You describe the early stages twice: once in the second paragraph and again in the third ("gathered from trashcans" and then "collected from garbage"). This wastes words that could go on missing detail.

What works: The paragraphs follow the order of the process, and you use sequencing words ("Then", "Finally", "After that", "At last"). The cyclical idea is stated at the start and the end.

Problems:

1. A reference makes no logical sense and confuses the sequence.
   • ❌ "As they are collected from trash, the crushed bottles are washed in a tank."
   • ✅ "The fragments are then washed in a tank."

1. The ending is a clumsy fragment, and its reference is unclear.
   • ❌ "After which the operation takes place from stage one when the goods are thrown as trash."
   • ✅ "Once these items are thrown away, they return to the collection bins and the cycle starts again."

1. The second and third paragraphs overlap, so the organisation feels repetitive. Merge the overview into one short paragraph, then split the detail into two body paragraphs (collection to washing, then pellets to products).

1. Some linkers are used mechanically or oddly.
   • ❌ "So smashed, cleaned bottles are used in a machine…"
   • ✅ "Next, a machine converts the clean fragments into plastic pellets."

❌ "For developing products, raw materials are essential." This sentence adds nothing and is not in the diagram.

What works: You use some process vocabulary ("sequential cycle", "sorted", "compressed", "crushed", "pellets", "raw materials"), and the meaning is generally clear.

Problems:

1. Several word choices are imprecise or unnatural.
   • ❌ "reproducible bottles" ✅ "recyclable bottles"
   • ❌ "the raw materials are consumed to create new products" ✅ "the raw material is used to manufacture new products"
   • ❌ "crushed through gears" ✅ "crushed between two rollers"
   • ❌ "smashed, cleaned bottles" ✅ "the crushed, washed fragments"
   • ❌ "the operation takes place from stage one" ✅ "the cycle starts again"

1. Word repetition is a problem: "collected/gathered", "bottles", "raw materials" and "products" are repeated rather than varied (for example "fragments", "items", "material").

1. Some phrases are not suited to a formal report.
   • ❌ "At last" ✅ "Finally"
   • ❌ "thrown as trash" ✅ "discarded" / "thrown away"

What works: You attempt a mix of passive forms, time clauses ("Once bottles reach the recycling site…") and relative clauses. Many simple passives are accurate ("are collected", "are washed").

Problems:

1. Word-order and duplication errors in complex sentences:
   • ❌ "the bottles are compressed blocks into dense blocks"
   • ✅ "the bottles are compressed into dense blocks"

1. Fragments and faulty sentence structure ("After which…", "So smashed…"):
   • ❌ "After which the operation takes place from stage one when the goods are thrown as trash."
   • ✅ "After the goods are discarded, the process begins again."

1. Awkward purpose and passive constructions:
   • ❌ "For transferring reproducible bottles to the factory, recycling trucks are used."
   • ✅ "A lorry then carries the recyclable bottles to a recycling centre."

1. Adverb and article slips, and minor punctuation errors:
   • ❌ "are firstly gathered" ✅ "are first collected"
   • ❌ "Finally the raw materials…" ✅ "Finally, the raw material…"
   • ❌ "to produce some clothes, pencils, bags and also bottles" ✅ "to produce T-shirts, pencils, bags and new bottles"

1. Write a separate, accurate overview paragraph, such as three phases plus the cyclical nature, and avoid describing the stages twice.
2. Check each stage against the diagram. Correct the heating stage ("to form raw material"), and add the sorting of suitable and unsuitable bottles and the full list of end products.
3. Fix sentence-level accuracy and word choice: remove the fragments and duplicated words ("compressed blocks into dense blocks", "After which the operation…"), and replace unnatural words such as "reproducible", "consumed" and "gears" with "recyclable", "used" and "rollers".