Ovlašćeno sakupljačko mesto će prikupiti elektronski otpad.

Because they both agree with mesto, which is a neuter singular noun.

In Serbian, adjectives must match the noun they describe in:

• gender
• number
• case

Here:

• mesto = place / point / site
• it is neuter singular
• so the adjectives become:
  • ovlašćeno = authorized
  • sakupljačko = collection-related

That is why you see -o on both adjectives.

Literally, sakupljačko mesto means something like collecting place or collection place.

In natural English, it is usually translated more idiomatically as:

• collection point
• collection site
• drop-off point

Yes, this kind of expression is common in official, administrative, environmental, or technical language.

Also, mesto literally means place, but in many contexts it can mean site, spot, or point.

Both are possible.

Serbian future tense can often appear in two common patterns:

• će + infinitive → će prikupiti
• attached form → prikupiće

So these are both correct:

• Ovlašćeno sakupljačko mesto će prikupiti elektronski otpad.
• Ovlašćeno sakupljačko mesto prikupiće elektronski otpad.

In your sentence, će is an enclitic, and enclitics usually appear in the second position of the sentence or clause. Since Ovlašćeno sakupljačko mesto comes first as a unit, će follows it.

So the structure is very natural Serbian word order.

This is mainly about verb aspect, which is very important in Serbian.

• prikupiti = perfective
• prikupljati / sakupljati = imperfective

Here, prikupiti presents the action as a completed whole: the waste will be collected.

That fits well if the sentence means something like:

• the collection point will take in / collect the waste
• the action is viewed as a completed result

If you used prikupljati, it would sound more like:

• collecting in general
• collecting repeatedly
• collecting as an ongoing activity

So:

• će prikupiti = will collect
• će prikupljati = will be collecting / will collect regularly, depending on context

Because it agrees with otpad, which is masculine singular.

Here:

• otpad = waste
• grammatical gender: masculine
• number: singular

So the adjective becomes:

• elektronski otpad = electronic waste

The -i ending is the expected form for this type of adjective with a masculine singular noun in this context.

It actually is in the accusative case, because it is the direct object of prikupiti.

However, with masculine inanimate singular nouns, the accusative often looks exactly the same as the nominative.

So:

• nominative: elektronski otpad
• accusative: elektronski otpad

That is why it looks unchanged.

This is normal in Serbian. A learner often notices case endings more clearly with:

• feminine nouns
• plural forms
• masculine animate nouns

Because otpad works like a mass noun, much like English waste.

So elektronski otpad means:

• electronic waste
• e-waste

It refers to the material as a category or mass, not to separate individual items.

If you wanted to talk about individual objects, you would usually use different wording, such as words meaning:

• devices
• appliances
• pieces of equipment
• items of waste

But elektronski otpad as singular is the normal standard term.

Yes, Serbian word order is more flexible than English word order.

For example, you could also say:

• Elektronski otpad će prikupiti ovlašćeno sakupljačko mesto.

That would shift the focus slightly. It might emphasize electronic waste more strongly.

However, not everything is completely free:

• će still tends to stay in second position
• some word orders sound more neutral than others

Your original sentence is a very neutral, standard way to say it.

Because Serbian does not have articles like English.

So Serbian usually does not directly mark:

• a / an
• the

Whether the meaning is definite or indefinite is understood from:

• context
• word order
• shared knowledge
• the broader situation

So Ovlašćeno sakupljačko mesto can mean:

• an authorized collection point
• the authorized collection point

The exact English choice depends on context, not on a separate Serbian word.

Yes. Ovlašćen / ovlašćena / ovlašćeno is the adjective meaning authorized, licensed, or empowered, depending on context.

Here it describes the collection point as officially permitted or recognized.

Its forms change by gender:

• ovlašćen = masculine
• ovlašćena = feminine
• ovlašćeno = neuter

Since mesto is neuter, the sentence uses ovlašćeno.